含Nd耐热镁合金显微组织和性能的研究
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摘要
稀土元素是改善镁合金高温性能最有效的元素,在耐热镁合金中,稀土镁合金占有特殊的地位,目前世界各国含稀土铸造镁合金牌号已占镁合金总数50%以上。中国是镁、稀土资源大国,研究和开发价格适中和高性能的稀土镁合金具有非常有利的条件。本文以Mg-Nd二元合金和Mg-Al-Nd三元合金为主要研究对象,运用光学金相分析(OM),扫描电子显微分析(SEM),电子束微区分析(EDAX),X射线衍射分析(XRD),等离子耦合光谱(ICP),透射电子显微分析(TEM)等多种分析和测试手段,系统研究了不同稀土元素La和Nd以及Nd含量的变化对Mg-Nd二元合金和Mg-Al-Nd三元合金的显微组织、力学性能和抗蠕变性能的影响。
     在Mg-La和Mg-Nd二元铸态合金中,La和Nd在合金中的分布形式明显不同。La主要存在于沿枝晶间界形成连续粗大的网状分布的共晶相(Mg+Mg17La2)中;而Nd则以部分存在于离异共晶Mg12Nd相中,其余则过饱和固溶于基体中。随着Nd含量的增加,Mg12Nd离异共晶的数量也逐渐增加,分布方式也从沿晶界上的点状逐渐过渡到网状分布。
     利用SEM和TEM研究了N2合金固溶(525℃/8小时)时效(250℃)后的显微组织。结果表明,时效1小时后,带状排列的βˊ相和片状的β相先后从α-Mg基体中析出,βˊ相、β相和α-Mg基体都有一定的共格关系,其中βˊ相和α-Mg基体共格关系为(110)β’//(0001)Mg和[112 ]β’// [1100]Mg;β相和α-Mg基体的共格关系为(011)β//(2110)Mg和[100]β//[0001]Mg。两者的惯析面分别(1100)Mg和(2110)Mg面。时效6小时后,介稳的带状排列的βˊ相消失,平衡β相沿[0001] Mg方向长大。同时对N2合金的XRD分析表明,时效6小时后合金中的析出相只有β(Mg12Nd)。对时效合金的硬度测试表明,随时效时间的延长,合金的硬度先升高,达到峰值后随时效时间的延长,硬度下降。通过计算析出相βˊ相和β相与α-Mg基体在惯析面和底面上的原子错配程度,解释了两相形貌形成的原因。结果发现在惯析面上两相和基体之间有非常好的原子匹配,特别是βˊ相在惯析面上和Mg之间几乎没有错配度。通过析出过程中的热力学和动力学分析,分析了βˊ相和β相形成过程中的形核和长大的过程。
     铸态Mg-Nd二元合金的室温拉伸性能相比Mg-Al基合金稍差,但是在高温下显示了优异的拉伸性能,而L2合金不论在室温和高温下,拉伸性能都非常差。固溶时效处理使Mg-Nd二元合金在室温和高温下的拉伸性能大大提高。热挤压后的N2合金具有非常优异的综合拉伸性能。
     对断口的显微组织研究表明,在室温下铸态合金L2属于典型的沿晶脆性断裂;随着Nd含量的增加,Mg-Nd二元铸态合金从典型的解理断裂向沿晶断裂转化。在高温下,各铸态合金的断裂机理基本没有改变。而挤压后的N2合金的断裂为典型的塑性韧窝断裂,随着温度的提高,韧窝的深度加深,塑性增强。
     对Mg-Nd二元合金在175℃/70MPa、200℃/70MPa和225℃/70MPa的蠕变性能研究表明,
Rare earth elements are the most effective elements on the improvement of the properties of magnesium alloy at high temperature. The as cast magnesium alloys containing rare earth take more than 50% in total magnesium alloys developed in the world, which makes the rare earth magnesium alloys take special place in the heat resistant magnesium alloys. China has the most plentiful magnesium and rare earth resources in the world, which provides advantages in researching and developing high properties rare earth magnesium alloys with the acceptable cost. In the present work, the microstructures, mechanical properties and creep resistance of Mg-Nd (La)binary alloys and Mg-Al-Nd(La) ternary alloys with different rare earth elements La and Nd, or different Nd additions have been investigated systematically by optical microscope (OM), scanning electron microscope (SEM), X-ray diffractometer (XRD), inductively coupled plasma (ICP), Transmitting electron microscope (TEM) etc.
     The existence form of La was quite different from that of Nd in the as cast Mg-Nd (La) binary alloy. La additions in the Mg-La binary alloy existed mostly in the eutectic phase(Mg+Mg17La2)which distributed along the interdentritic boundaries; however, Nd additions in the Mg-Nd alloy existed partly in the divorced eutectic phase Mg12Nd and partly solid solved in the oversaturatedα-Mg matrix. With the increase of Nd additions, the volume fraction of divorced eutectic phase Mg12Nd increased gradually and the existence form of Mg12Nd also changed from spotted to network formed along grain boundaries.
     The microstructure of N2 alloy after solid solution (525℃/8h) and aging treatment (250℃) was investigated through SEM and TEM. The results showed that the ribbon-orderedβˊ phase and the small plate phaseβprecipitated fromα-Mg matrix subsequently. Both the phaseβˊ and the phaseβhad coherent relationship withα-Mg matrix, which were described as (110)β’//(0001)Mg and [11 2 ]β’// [1100]Mg,(011)β//(2110)Mg and [100]β//[0001]Mg. The habit planes of the phaseβˊ and the phaseβwere (1100)Mg and (2110)Mg respectively. The metastable phaseβˊ disappeared and the equilibrium phaseβgrown along the direction of [0001] Mg with the aging time increasing. The results of XRD also showed that there was onlyβphase (Mg12Nd) existed in the N2 alloy after 6 hours aging. The curves of hardness with aging time exhibited the hardness of the alloy N2 increased to the peak value and then decreased gradually with the aging time prolonging. The shape of two kinds of precipitatesβˊ&βduring aging was explained through the calculation of the misfit degree of atoms between the precipitatesβˊ&βand matrix on the habit plane and the basal plane ofα-Mg. The results also showed that the two precipitated phases had perfect atoms match withα-Mg matrix on each habit plane , especiallyβˊ phase nearly had no
引文
1 I.J.Polmear . Light Alloys: Metallurgy of the light metals 2edn[C], London:Edward Arnold, 1981
    2 P.A.Fisher. Production, properties, and industrial uses of magnesium and its alloys[J].International Metal Reviews, 1978(6): 269-285
    3 E.F. Emley. Principles of Magnesium Technology[M]. London: Pergamon Press, 1966 .267
    4 Elektron. Magnesium Alloys Handbook[M]. Magnesium Elektron Ltd., 1953
    5 Dwain M.Magers. A Global Review of Magnesium Parts in Automobils[J]. Light Metal Age, 1996(10):60
    6 Rosen, Gady Isaac. Large profile magnesium alloys extrusions for automotive applications[J]. JOM. 2004, 56(11):32
    7 赵志远,朱慕霞,鲁立奇. 航空材料学[M]. 上海:上海科学技术出版社,1985
    8 刘世友.镁工业生产、应用与发展.上海有色金属. 1995, 16(6): 353-357
    9 E.J. Vinarcik. Light Metal Advances in the Automotive Industry. Part I: Magnesium in Automotive application[J]. Light Metal Age, 2001(4)
    10 J.C. Benedyk.. Magnesium is On the Move[J]. 12th Annual Magnesium in Automotive Seminar, 2001(4).
    11 M. O. Pekguleryuz, M. M. Avedesium. Magnesium alloying, some potentials for alloy development[J]. Light Metal, 1992, 42(12): 679-686
    12 Benedyk, Joseph C. Magnesium advances in automotive applications[J]. Light Metal Age, 2005, 63 (3): 36-38
    13 王敏芳,徐明忠. 国内外金属镁及其合金的生产与市场研究[J]. 工业技术进步, 1997(1)
    14 卢晨, 卫中山.镁合金的研究与应用进展[J]. 汽车工艺与材料,2005 (9)
    15 吕宜振. Mg-Al-Zn 合金组织、性能、变形和断裂行为研究[D].[博士学位论文]. 上海:上海交通大学. 2001.9
    16 林裴[译]. 镁合金手册-工艺与性质[M]. 北京:冶金工业出版社,1959.8
    17 陈振华等. 镁合金[M]. 北京:化学工业出版社.2004.7
    18 M. Regev , E. Aghion , S. Berger, et al. Dislocation analysis of crept AZ91D ingot castings[J]. Materials Science and Engineering, 1998, A257: 349–352
    19 T. Mukai, M. yamanoi, H. Watanabe, et al. Ductility enhancement in AZ31 magnesium alloy by controlling its grain structure[J]. Scripta Materiallia, 2001, 45: 89-94
    20 哈宽富. 金属力学性质的微观理论[M]. 北京:科学出版社,1983
    21 布鲁克斯(Brooks,C.R.). 有色合金的热处理、组织与性能[M]. 北京:冶金工业出版社, 1988.7
    22 潘金生.材料学基础[M]. 北京:清华大学出版社,1989.8
    23 P. Lukac. Proc.3rd International Magnesium Conference[C], 10-11 April 1996, Institute ofMaterials, London, 1997:381
    24 刘正,张奎,曾小勤. 镁基轻质合金理论基础及其应用[M]. 北京:机械工业出版社, 2002.9
    25 龙思远,谭欣平,李建华等. 镁合金在摩托车上的应用可行性研究[C]. Sinomag Die Casting Magnesium Seminar,Shanghai,Aug. 26th~28th,2001
    26 C.K.Chung . The market survey of magnesium applications for vehicle industry[C]. Sinomag Die Casting Magnesium Seminar, Beijing,Nov.. 22th~24th,2002
    27 E.F. Emley. Principles of Magnesium Technology[M]. London: Pergamon Press, 1966 :267
    28 Baghni, I.M. Wu, Yin-Shun. Mechanical properties and potential applications of magnesium alloys [J].Transactions of Nonferrous Metals Society of China (English Edition), 2003(12) , 13( 6): 1253-1259
    29 B.L. Mordike, T. Ebert. Magnesium: Properties -applications - potential[J]. Materials Science and Engineering A, 2001, 302: 37–45
    30 Elektron. Magnesium Alloys Handbook[M]. Magnesium Elektron Ltd., 1953
    31 G.Cole. Magnesium :the unfriendly metal with friendly future[C]. Sinomag Die Casting Magnesium Seminar, Beijing:Nov., 22th~24th,2002
    32 A. Luo. Magnesium Automotive Applications[C]. Sinomag Die Casting Magnesium Seminar, Shanghai:Aug. 26th~28th,2001
    33 P.J .Blanchard. Evaluation of corrosion protection methods for magnesium alloys in automotive applications[C].Magnesium Technology 2005 - Proc. of the Symp. TMS (the Minerals, Metals and Materials Soc.) with the Int. Magnesium Assoc., 2005: 463-468
    34 P. Uzan, D. Eliezer, E. Aghion. Corrosion Behaviour of Recycled Magnesium AZ91[C]. Proceeding of the Third International Magnesium Conference, edited by G. W. Lorimer, 1997.
    35 Bretz Gregory T, Blanchard, Patrick J. Hill, David J.. Evaluation of corrosion protection methods for magnesium alloys in automotive applications[J]. JOM, 2004(11), 56(11): 343
    36 V.-T. Truong, P.K. Lai, B.T. Moore, et al. Russo Corrosion protection of magnesium by electroactive polypyrrole / paint coatings[J]. Synthetic Metals, 2000, 110: 7–15
    37 P. Humble. Towards A cheap Creep Resistant Magnesium Alloy[J]. Mater. Forum, 1997,21 : 45-56
    38 M.O.Pekguleryuz. Magnesium diecasting alloys for high temperature applications[C]. Magnesium. Technology 2004, 2004:281-287
    39 M.O.Pekguleryuz , A.A. Kaya. Creep resistance alloys for powertrain applications[J]. Advanced Engineering Materials, 2003 , 5(12): 866-878
    40 Benedyk, Joseph C. Magnesium advances in automotive applications[J]. Light Metal Age, 2005(5), 63( 3):36-38
    41 G. V. Raynor. The Physical Metallurgy of Mg and Its Alloys[M] .London: Perg. Press,1959:103
    42 陈全明. 金属材料及强化技术[M]. 上海:同济大学出版社,1992
    43 肖小玲,罗承萍.AZ91 Mg-Al 合金中β-(Mg17Al12)析出相的形态及其晶体学特征[J].金属学报,2001,37(1):1-7
    44 Nie, J.F.; Muddle, B.C. Precipitation in magnesium alloy WE54 during isothermal ageing at
    250°C [J]. Scripta Materialia, 1999(4), 40(10):1089-1094
    45 Apps, P.J., Karimzadeh, H., King, J.F.,Lorimer, G.W. Precipitation reactions in magnesium-rare earth alloys containing yttrium, gadolinium or dysprosium[J]. ScriptaMaterialia, 48(8), 2003(4):1023-1028
    46 钱苗根. 金属学[M].上海:上海科学技术出版社,1984
    47 T.K.Aune, H.Westengen, T.J.Ruden. The effect of varying aluminum and rare-earth content on the mechanical properties of die cast magnesium alloys[C]. SAE Technical Paper940777, Detroit,1994
    48 Aghion, E. , Bronfin, B.,Von Buch, F., Schumann, S.,Friedrich. H.. Newly Developed Magnesium Alloys for Powertrain Applications[J]. JOM, 2003(11), 55(11): 30-33
    49 Benedyk, Joseph C. Magnesium advances in automotive applications[J]. Light Metal Age, 2005(5), 63(3): 36-38
    50 翟春泉,曾小勤,丁文江等. 镁合金的开发和应用. 机械工程材料,25(1),2001:6-10
    51 A.K.Dahle, Y.C. Lee, M.D. Nave, etc. Development of the as-cast microstructure in magnesium aluminium alloys[J]. Journal of Light Metals, 2001, 1: 61-72
    52 P.Aroule. Magnesium demand and supply[C]. 58th Annual World Magnesium Conference, Brussels,2001
    53 LeBeau, Stephen; Walukas, D. Matthew. Thixomolding of magnesium components for electronic applications[C]. Proceedings of the Conference on Plastics for Portable and Wireless Electronics, 1999: 49-58
    54 D. Magers, J. Willekens. Global Outlook on the Use of Magnesium Diecastings in Automotive Applications.Magnesium Alloys and Their Applications[C], edited by B.L. Mordike and K.U. kainer, Frankfurt, Germany, 1998:105-112
    55 F.V. Buch, S. Schumann. New high temperature die casting magnesium alloys for power-train applications[C]. Sinomag Die Casting Magnesium Seminar, Beijing,Nov.. 22th~24th,2002
    56 G.S.Cole. Use of Magnesium Components in the Automotive Industry[C]. Proc. of International Symposium on Light Metals. Edited by C.M. Bichkert an R.I. L. Guthrie, The Metallurgical Society of CIM, Canada, 1997:51-67
    57 张诗昌,段汉桥,蔡起舟等. 主要合金元素对镁合金组织和性能的影响[J].铸造,2001, 50(6):310-315
    58 J.J. Kim, D.H. Kim, K.S. Shin, et al. Modification of Mg2Si Morphology in Squeeze Cast Mg-Al-Zn-Si Alloys by Ca of P Addition[J]. Scripta Materiallia, 41(3),1999,:333-340.
    59 闵学刚. Ca 、Si 和 RE 对 AZ91 合金的组织和性能的影响[J]. 东南大学学报, 32(3),2002
    60 Duan.Zhi-Chao,Sun.Yang-Shan, Wei. Yu; Du. Wen-Wen. Microstructure and tensile properties of magnesium alloy modified by Si/Ca based refiner[J]. Transactions of Nonferrous Metals Society of China, 2005(8), 15(4): 878-883
    61 Y.C .Lee, A.K .Dahle, D.H. StJohn. Grain refinement of magnesium[C]. TMS Annual Meeting, 2000:211-218
    62 闵学刚. 几种合金元素对改善 AZ 91 合金显微组织和力学性能的研究[D]: [博士论文].南京: 东南大学, 2002.8
    63 American Society for Metals. Metals Handbook[M]. Ohio: Metals Park,1973
    64 K. E. Nelson. Magnesium die casting alloys[C]. SDCE Transcations, Paper No.13,1970
    65 Mercer, William E. II. Magnesium die cast alloys for elevated temperature applications[C]. SAE Technical Paper Series, 1990, 12p 900788
    66 I.P. Moreno, T.K. Nandy, J.W. Jones,et al. Microstructure and creep behavior of a die cast magnesium rare earth alloy [A]. In: H.I. Kaplan Ed. Magnesium Technology 2002[C]. Seattle:Minerals, Metals & Materials Society, 2002:111-116
    67 高洪吾,胡晓菊,李长茂等. RE 元素 Y 和 Nd 对 Mg-6Al 合金显微组织的影响[J]. 特种铸造及有色合金, 2004(6)
    68 黄晓锋,付彭怀,卢晨,丁文江. Nd 对 AM50 力学性能及高温性能的影响. 材料研究学报,2004(6): 593-596
    69 Bob R. Powell, Vadim Rezhets, Michael P. Balogh et al. The relationship between microstructure and creep behavior in AE42 magnesium die casting alloy [C]. In; J. Hryn, Ed. Magneium Technology 2001, New Orlands: Minerals, Metals & Materials Society, 2001:175-181
    70 S.Xue, Y.-S Sun, S. –S Ding et al, Effects of Calcium additions on microstructure and creep behavior of AE42 alloy[J], Materials science and technology, 2005(7), 21(7): 847-853
    71 Y. Sun, S. Xue, J. Bai, Heat resistance magnesium alloys with rare earth and alkaline earth additions[C]. Edited by J.F. Nie Materials Forum Volume 29, Austrialasia: 2005(5).311-317
    72 Vostry. P. , Stulikova, I.. Structure and stability of microcrystalline Mg-Ca alloy[J]. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, A137, 1991(5) :87-92
    73 Luo, A.A. Recent magnesium alloy development for elevated temperature applications[J]. International Materials Reviews, 49(1), 2004(2) :13-30
    74 Zhan Zhang, Real Tremblay, Dominique Dube. The Mg-Zn-Al alloys and the influence of calcium on their creep properties[J]. Magneium Technology 2001, Edited by J. Hryn, TMS(The Minerals, Metals & Materials Society),2001:147-151
    75 M.A .Parvez, X. Wang, E. Essadiqi. Experimental investigation of the equlibria in Mg-Al-(Ca,Sr) system Metals and Materials[C]. Magnesium Technology 2005,2005: 179-184
    76 Luo, Alan A.; Powell, Bob R. Tensile and compressive creep of magnesium-aluminum-calcium based alloys[C]. TMS Annual Meeting, 2001: 137-144
    77 丁绍松. Ca 合金化对 AE 系列合金显微组织和性能的影响. 东南大学硕士论文, 2003.3
    78 XUE shan,SUN Yang-shan, ZHU Tian-bai et al. Creep resistance of Mg-4%Al-2%RE-2%Ca alloy[J], Trans. Nonferrous Met. Soc. China, 2005(8), 15(4):883-887
    79 Powell B. Development of GM calcium-containing, creep-resistant magnesium alloys for powertrain applications [C]. DING Weinan.. Sinomag Die Casting Magnesium Seminar. Beijing: Sinomag Magnesium Seminar 2002:14-25
    80 Argo. D., Pekguleryuz. M., Labelle, P.. Parameters and diecasting of noranda's AJ52 high temperature Mg-Al-Sr alloy[C]. TMS Annual Meeting, 2002: 87-93
    81 Sun Y.S., Zhang W.M., Min X.G.. Tensile strength and creep resistance of Mg-9Al-Zn based alloys with calcium additions[J]. ACTA METALLURGICA SINICA, 2001, 5(14):33.-334
    82 Mihriban O. Pekguleryuz, Eric Baril, Development of creep resistant Mg-Al-Sr alloys[C], Magneium Technology 2001, Edited by J. Hryn, TMS,2001:119-125
    83 Pekguleryuz, Mihriban O. Baril, Eric; Labelle, Pierre; Argo, Donald. Creep resistant Mg-Al-Sr alloys[J]. Journal of Advanced Materials, 2003(6), 35(3) :32-38
    84 薛山,孙扬善,丁绍松等. Ca 和 Sr 对 AE42 合金蠕变性能的影响[J]. 2005(3),35(2):261-265
    85 M.A. Parvez, X. Wang, E. Essadiqi. Experimental investigation of the equlibria in Mg-Al-(Ca,Sr) systems[C]. Magnesium Technology 2005, 2005:179-184
    86 Yuan guangyin ,Sun Yangshan. Effects of Sb addition on the microstructure and mechanical properties of AZ91 magnesium alloy[J]. Trans. Nonferrous Met. Soc. China, 2000, 43:1009-1013
    87 孙扬善,翁坤忠,袁广银. Sn 对镁合金显微组织和力学性能的影响[J].中国有色金属学报. 1999,9(1):55-60
    88 袁广银,孙扬善,王震. Sb 低合金化对 Mg-9Al 基合金显微组织和力学性能的影响[J].中国有色金属学报,1999, 9(4):779-784
    89 D.-H .Ping, K. Hono, J.F. Nie,Atom probe characterization of plate-like precipitates in a Mg-RE-Zn-Zr casting alloy[J]. Scripta Materialia, 2003(4), 48(8):1017-1022
    90 K.Yu, Wenxian Li. Production, properties and microstructures of Mg-RE-Zn-Zr (RE=MM, Nd) alloy[J]. Journal of Materials Science and Technology, 2002(7), 18(4) :378-380
    91 Ping D.-H., Hono K.,Nie J.F. Atom probe characterization of plate-like precipitates in a Mg-RE-Zn-Zr casting alloy[J].Scripta Materialia, 2003(4),48(8) :1017-1022
    92 Rokhlin L.L., Nikitina N.I. Recovery after ageing of Mg-Y and Mg-Gd alloys[J]. Journal of Alloys and Compounds, 1998(10), 279(2): 166-170
    93 Anyanwu I.A., Kamado S.. Creep properties of Mg-Gd-Y-Zr alloys[J]. Materials Transactions, 2001 , 42(7): 1212-1218
    94 P. Lyon, J.F. King , K. Nuttal. A New Magnesium HPDC Alloy for Elevated Temperature Use[C]. Proceeding of the Third International Magnesium Conference, edited by G. W. Lorimer, 1997.
    95 Wang J.G.,Hsiung L.M., NiehT.G.,Mabuchi M. Creep of a heat treated Mg-4Y-3RE alloy[J]. Materials Science and Engineering A, 2001(9), 315( 1-2):81-88
    96 Zhu S.M.,Nie J.F. Serrated flow and tensile properties of a Mg-Y-Nd alloy[J]. Scripta Materialia, 2004(1), 50(1): 51-55
    97 Nie J.F. , Muddle B.C. Precipitation in magnesium alloy WE54 during isothermal ageing at 250°C[J]. Scripta Materialia, 1999(4), 40(10):1089-1094
    98 Stratford D. J., Beckley L. Precipitation process in Mg-Th, Mg-Th-Mn, Mg-Mn, and Mg-Zr alloys[J]. Metal Science Journal, 6, 1972(5): 83-89
    99 Kainer Karl Ulrich . Properties of P/M QE 22 magnesium alloys[J]. Advances in Powder Metallurgy, Aerospace, Refractory and Advanced Materials, 1991: 307-321
    100 Smola Bohumil,Stulikova I., Pelcova J., Von Buch, F.. Microstructure and phase changes due to heat treatment of squeeze cast Mg-Sc-(Ce)-Mn alloys[J]. Physica Status Solidi (A) Applied Research, 2002(5), 191(1): 305-316
    101 Mordike B.L.,Stulikova I., Smola B. Mechanisms of creep deformation in Mg-Sc-based alloys[J]. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 2005(7) , 36(7):1729-1736
    102 von Buch F., Lietzau J., Mordike B.L. Development of Mg-Sc-Mn alloys[J]. Materials Science and Engineering A, 1999(4) , 263(1): 1-7
    103 Stulikova I., Smola B.; Mordike, B.L. New high temperature creep resistant Mg-YNd-Sc-Mn alloy[J]. Physica Status Solidi (A) Applied Research, 2002(4), 190(2): 5-7
    104 Grobner J., Schmid-Fetzer R. Selection of promising quaternary candidates from Mg-Mn-(Sc, Gd, Y, Zr) for development of creep-resistant magnesium alloys[J]. Journal of Alloys and Compounds, 2001(5), 320(2):296-301
    105 Unsworth William. New magnesium alloy for auto bile applications[J]. Light Metal Age, 1987(8), 45(7-8): 10-13
    106 Jun J.H., Kim J.M., Park, B.K.. Effects of rare earth elements on microstructure and high temperature mechanical properties of ZC63 alloy[J]. Journal of Materials Science, 2005(5), 40(9-10): 2659-2661
    107 李亚国,刘世荣,刘海林,张继东. MB_(26)镁合金热加工工艺的研究[J]. 稀有金属, 2004(5)
    108 黄德明,刘红梅,陈云贵,唐永柏,涂铭旌. 耐热铸造镁合金的研究应用进展[J].轻金属, 2005(8):49-54
    109 R.W.Cahn. Physical Metallurgy[J], North-Holland, 1970:1132
    110 杨宜科. 金属高温强度及试验[M]. 上海:上海科学技术出版社, 1986
    111J.J.Gilman. Dislocation Mobility in Crystals[J]. Journal of Applied Physics, 1965(10), 36(10):3196-3206
    112 J.E. Dorn. Creep and Fracture of metals at high temperatures[M]. Nat. Phys. Lab., 1954:89
    113 J. Weertman. J.Appl. Phys., 26,1955:1213
    114 平修二(日). 金属材料的高温强度[C].北京: 科学出版社, 1983
    115 V. Sustek, S. Spigarelli, J. Cadek. Creep Behavior at High Stresses of Mg-Zn-Ca-Ce-La Alloy Processed by Rapid Solidification[J]. Scripta Materiallia, 1996 , 35(3):449-454
    116 R.W. Evans, B. Wilshire. Creep of metals and alloys[C] . London : Institute of Metals, 1985.
    117 S. Spigarell. CREEP OF A THIXOFORMED AND HEAT TREATED AZ91 Mg-Al-Zn ALLOY[J]. Scripta Mater., 2000, 42: 397–402
    118 S. Spigarell, M. Cabibbo, E. Evangelista, et al. Analysis of the creep behavior of a thixoformed AZ91 magnesium alloy[J]. Materials Science and Engineering A, 2000 , 289: 172–181
    119 J. Cadek, V. Sustek, L. Kolc, E. Evangelista. Threshold creep behaviour of an Mg-Zn-Ca-Ce-La alloy processed by rapid solidification, Materials Science and Engineering A,1996, 215: 73-83
    120 Smola B.,Stulikova I., Pelcova J., Mordike B.L. Significance of stable and metastable phases in high temperature creep resistant magnesium-rare earth base alloys[J]. Journal of Alloys and Compounds, 2004(9) , 378(1-2): 196-201
    121 Crossland I. G., Jones R. B. GRAIN BOUNDARY DIFFUSION CREEP IN MAGNESIUM. Metal Science, 1977(11), 11(11): 504-508
    122 Saddock, Nicholas David , Pollock, Tresa M.. Inspection of grain boundary sliding in die-cast Mg alloys during creep deformation via strain mapping techniques[J]. JOM, 2004(11), 56(11): 84
    123 闵学刚,孙扬善,杜温文等. Ca、Si 和 RE 对 AZ 91 组织和性能的影响[J]. 东南大学学报,2002, 32(3)
    124 郭旭涛,李培杰,刘树勋,曾大本. 稀土耐热镁合金发展现状及展望[J]. 铸造, 2002(2)
    125 Zhao Hong-Liang, Guan Shao-Kang. Microstructure and properties of AZ31 magnesium alloy with rapid solidification[J]. Transactions of Nonferrous Metals Society of China (English Edition), 2005(2) , 15(1):144-148
    126 R.S. Rudi, S. Kamado, N.Lkeya, et al. High Temperature Strength of Semi-solid Formed Mg-Zn-Al-Ca Alloys[J]. Materials Science Forum, 2000, 350:79-84
    127 郭旭涛,李培杰,曾大本. 稀土在耐热镁合金中的应用[J]. 稀土, 2002(2):31-33
    1 刘正,张奎,曾小勤. 镁基轻质合金理论基础及其应用[M].北京:机械工业出版社, 2002.9
    2 胡忠,张启勋,高以熹.铝镁合金铸造工艺及质量控制[M]. 北京: 航空工业出版社,1990
    3 王锰等.轻金属材料加工手册(上册) [M],北京: 冶金工业出版社,1999
    4 《稀土》编写组. 稀土[M]. 北京:冶金工业出版社, 1978
    5 闵学刚,几种合金元素对改善 AZ91 合金显微组织和力学性能的作用的研究[D]. [博士学位论文]. 南京:东南大学,2002.8
    6 陈振华等. 镁合金[M]. 北京: 化学工业出版社.2004.7
    7 候广亮,李忠胜,朱正群等.铸造镁和镁合金无熔剂熔炼新工艺研究[J]. 轻金属,1983:38-41
    8 H. Gjestland, H. Westengen and S. Plahte. Use of SF6 in the Magnesium Industry: An Environmental Challenge[C]. Proc.3rd International Magnesium Conference, Institute of Materials, London, 1997:33
    9 束德林. 金属力学性能[M]. 北京: 机械工业出版社,1995
    10 秦国友. 定量金相[M]. 成都:四川科学技术出版社,1987
    11 Bramfitt B.L. The effects of carbide and nitride additions on heterogeneous nucleation behavior of liquid iron[J]. Metall. Trans., 1970,1(7):1987-1991
    1 Benedyk, Joseph C. Magnesium advances in automotive applications[J].Light Metal Age, 2005 , 63 (3): 36-38
    2 陈振华等. 镁合金[M]. 北京:化学工业出版社.2004.7
    3 M.O.Pekguleryuz , A.A. Kaya. Creep resistance alloys for powertrain applications[J]. Advanced Engineering Materials, 2003, 5(12): 866-878
    4 长崎诚三, 平林真编著二元合金状态图集[M]. 北京:冶金工业出版社,2004
    5 American Society for Metals. Metals Handbook[M]. Ohio: Metals Park,1973
    6 刘正,张奎,曾小勤. 镁基轻质合金理论基础及其应用[M]. 北京:机械工业出版社, 2002.9
    7 林裴[译]. 镁合金手册-工艺与性质[M]. 北京:. 冶金工业出版社,1959.8
    8 郭旭涛,李培杰,刘树勋,曾大本. 稀土耐热镁合金发展现状及展望[J]. 铸造, 2002(2)
    9 郭旭涛,李培杰,曾大本. 稀土在耐热镁合金中的应用[J]. 稀土, 2002(2)
    10 P. Lyon, J.F. King , K. Nuttal. A New Magnesium HPDC Alloy for Elevated Temperature Use[C]. Proceeding of the Third International Magnesium Conference, edited by G. W. Lorimer, 1997.
    11 Rokhlin, L.L.; Dobatkina, T.V.; Tarytina, I.E.; Timofeev, V.N.; Balakhchi, E.E. Peculiarities of the phase relations in Mg-rich alloys of the Mg-Nd-Y system[J]. Journal of Alloys and Compounds, 2004(3), 367(1-2): 17-19
    12 Nuttall, P. A.; Pike, T. J.; Noble, B.. METALLOGRAPHY OF DILUTE Mg-Nd-Zn ALLOYS[J]. Metallography, 1980(2), 13(1): 3-20
    13 D. Magers, J. Willekens. Global Outlook on the Use of Magnesium Diecastings in Automotive Applications[C].Magnesium Alloys and Their Applications, edited by B.L. Mordike and K.U. kainer, Frankfurt, Germany, 1998:105-112
    14 Vostry, P.; Stulikova, I.; Smola, B.; Kiehn, J.; Riehemann, W.; Mordike, B.L. Annealing effects in melt spun microcrystalline ribbons of Mg-Y and Mg-Nd alloys[J]. Key Engineering Materials, 1994 , 97-98: 29-36
    15 Luo, Zhiping; Zhang, Shaoqing; Lu, Liqi; Wei, Guo. Effects of heat treatments on the properties and microstructures of extruded Mg-Nd-Zr alloy[J]. Journal of Rare Earths, 1994(12), 12(4):296-298
    16 L.Y. Wei, G.L. Dunlop. Age hardening and precipitation in a cast magnesium-rare-earth alloy. Journal of Materials Science, 1996, 31:387-397
    17 叶恒强, 王元明. 透射电子显微学进展[M]. 北京:科学出版社, 2003
    18 黄孝瑛. 透射电子显微学[M]. 上海:上海科学技术出版社, 1987
    19 郭可信, 叶恒强. 高分辨电子显微学在固体科学中的应用[M]. 北京:科学出版社, 1985
    20 〔日〕进藤大辅,平贺贤二. 材料评价的高分辨电子显微方法[M]. 北京: 冶金工业出版社, 2002.4
    21 何肇基. 金属力学性能试验[M]. 北京:冶金工业出版社, 1988.5
    22 杜温文. 变形镁合金的晶粒细化研究[D]. [硕士论文].南京:东南大学, 2003
    23 S. Delfino, A.Saccone. Phase relationship in the Neodymium-Magnesium alloy system[J]. Metallurgy Transcations A, 1990(8), 21:2109-2114
    24 李奇, 陈光巨. 晶体结构与测定[M]. 北京:中国科学技术出版社, 2004
    25 D.A.珀特,K.E.伊斯特休. 金属和合金中的相变[M]. 北京: 冶金工业出版社,1983.1
    26 Ping, D.-H.; Hono, K.; Nie, J.F. . Atom probe characterization of plate-like precipitates in a Mg-RE-Zn-Zr casting alloy[J]. Scripta Materialia, 2003(4), 48(8):1017-1022
    27 Lambri, O.A.; Riehemann, W.; Salvatierra, L.M.; Garcia, J.A. Source:Effects of precipitation processes on damping and elastic modulus of WE 43 magnesium alloy[J]. Materials Science and Engineering A, 2004(5), 373(1-2): 146-157
    28 沙桂英,韩恩厚,于涛等. Mg-Y-Nd 合金的蠕变行为及其微观机制[J]. 金属学报,2003(10), 39(10):1025-1030
    29 潘金生, 仝健民, 田民波. 材料科学基础[M]. 北京:清华大学出版社,1993
    30 约翰.D.费豪文. 物理冶金学基础[M]. 上海:上海科学技术出版社,1980
    31 哈宽富. 金属力学性质的微观理论[M]. 北京:科学出版社,1983
    32 G.Nussbaum, P.Sainfort, G.Regazzoni and H.Gjestland, Scripta metall., 1989, 23:1079
    33 R.Armstrong, I.Codd,R.M.Douthwaite and N.J.Petch, Phil.Mag., 1962,7: 45
    34 赵建生. 断裂力学及断裂物理[M]. 北京: 华中科技大学出版社, 2003
    35 张栋. 失效分析[M]. 北京:国防工业出版社, 2004
    36 闵学刚. 几种合金元素对改善 AZ 91 合金显微组织和力学性能的研究[J]. [博士论文].南京: 东南大学,2002.8
    37 束德林.金属力学性能[M]. 北京:机械工业出版社,1987
    1 R.W. Cahn and P. Haasen. Physical Metallurgy[M]. Published by North-Holland Publishing, New York, USA ,1983: 1309-1340
    2 哈宽富. 金属力学性质的微观理论[M]. 北京:科学出版社,1983
    3 R.W. Evans, B. Wilshire. Creep of metals and alloys [M] . London : Institute of Metals, 1985.
    4 杨宜科. 金属高温强度及试验[M]. 上海:上海科学技术出版社, 1986
    5 平修二(日). 金属材料的高温强度[M]. 北京:科学出版社, 1983
    6 Y.S. Sun, W.M. Zhang, X.G. Min. Tensile Strength and Creep Resistance of Mg-9Al-1Zn Based Alloys with Calcium Addition[J]. ACTA Metallurgica Sinica (English Letters),2001, 14(5):330-334
    7 M. Regev , E. Aghion , S. Berger, et al. Dislocation analysis of crept AZ91D ingot castings[J]. Materials Science and Engineering A, 1998, 257 : 349–352
    8 S. Spigarell. Creep of a thixformed and heat treated AZ91 Mg-Al-Zn alloy[J]. Scripta Mater.,2000, 42: 397–402
    9 束德林. 金属力学性能[J]. 北京:机械工业出版社,1987
    10 P. Humble. Towards A cheap Creep Resistant Magnesium Alloy[J]. Mater. Forum, 1997, 21 : 45-56
    11 E.J. Vinarcik. Light Metal Advances in the Automotive Industry[J]. Part I: Magnesium in Automotive application. Light Metal Age, 2001(4)
    12 R. E. B. Brown. Magnesium Technology 2000[C]. The TMS 129th Annual Meeting Exhibition. Light Metal Age, 2000(12) :34-37
    13 J.C. Benedyk. Magnesium Is On the Move[C]. 12th Annual Magnesium in Automotive Seminar. Light Metal Age, 2001.
    14 潘金生, 仝健民, 田民波. 材料科学基础[M]. 北京:清华大学出版社,1993
    15 Brown, D.W.; Agnew, S.R.; Bourke, M.A.M.. Internal strain and texture evolution during deformation twinning in magnesium. Materials Science and Engineering A, 2005(6) ,399(1-2): 1-12
    16 Zhou, H.T.; Zeng, X.Q.; Liu, L.L.; Dong, J.; Wang, Q.D.; Ding, W.J.; Zhu, .P.. Microstructural evolution of AZ61 magnesium alloy during hot deformation[J]. Materials Science and Technology, 2004(11), 20(11):1397-1402
    17 刘满平.Mg-Al-Ca 合金微观组织、力学性能和蠕变行为研究[D]: [博士论文].上海:上海交通大学,2004
    18 艾延龄.含 Ca、Si 镁合金的显微组织及晶体学分析[D].[博士论文].广州:华南理工大学,2004
    19 陈振华等. 镁合金[M]. 北京:化学工业出版社.2004.7
    20 Suzuki, M.; Inoue, R.; Sugihara, M.; Sato, H.; Koike, J.; Maruyama, K.; Oikawa, H.. Effects of yttrium on creep behavior and deformation substructures of magnesium[J]. Materials Science Forum, 2000, 350: 151-156
    21 沙桂英. 徐永波. 韩恩厚. 铸造 Mg-RE 合金的显微结构及其蠕变行为[J]. 材料研究学报, 2003 (6):25-27
    22 Suzuki, M.; Sato, H.; Maruyama, K.; Oikawa, H. Source:Effect of yttrium concentration on creep of Mg-Y alloys at 550 K[C]. Proceedings of the International Conference on Creep and Fracture of Engineering Materials and Structures, 1997: 59-67
    23 沙桂英,韩恩厚,于涛等.Mg-Y-Nd 合金的蠕变行为及其微观机制[J]. 金属学报, 2003(10),39(10):1025-1030
    24 Kassner, M.E.; Perez-Prado, M.-T. Source:Five-power-law creep in single phase metals and alloys[J]. Progress in Materials Science, 2000, 45(1):1-102
    25 Cane, B. J.. RELATIONSHIP BETWEEN DEFORMATION AND RUPTURE DURING POWER-LAW CREEP IN ENGINEERING MATERIALS[J]. Materials Science and Engineering, 1978(9), 35(2) :229-238
    26 Luo A. Recent magnesium alloy development for elevated temperature applications[J]. International materials Reviews, 2004, 21:13-30
    27 M.O.Pekguleryuz , A.A. Kaya. Creep resistance alloys for powertrain applications[J]. Advanced Engineering Materials, 2003 , 5(12): 866-878
    28 McLean, D.. Prediction of creep fracture in engineering alloys[J]. Solid Wastes Management Refuse Removal Journal, 1978, 1: 325-362
    29 Galiyev, A.; Kaibyshev, R. Microstructural evolution in ZK60 magnesium alloy during severe plastic deformation [J]. Materials Transactions, 2001, 42(7): 1190-1199
    30 Galiyev, Arthur; Sitdikov, Oleg; Kaibyshev, Rustam Source: Deformation behavior andcontrolling mechanisms for plastic flow of magnesium and magnesium alloy[J]. Materials Transactions, 2003(4), 44(4): 426-435
    31 R.W. Cahn and P. Haasen. Physical Metallurgy[M]. Published by North-Holland Publishing, New York, USA ,1983: 1309-1340
    32 G.E. Dieter. Mechanical Metallurgy, McGraw-Hall, New York, NY, USA,1986:432-457
    33 林裴[译]. 镁合金手册-工艺与性质[M]. 北京:冶金工业出版设,1959.8
    34 B.Lmordike, P.Lukac. Proc.3rd International Magnesium conference, April 10-11,1996, Institute of Materials, London, 1997:419
    35 Nabarro, F.R.N. Do we have an acceptable model of power-law creep? [J]. Materials Science and Engineering A, 2004(12), 387-389(1-2 SPEC. ISS.):659-664
    36 Williams, K. R.; Wilshire, B..ON THE STRESS- AND TEMPERATURE-DEPENDENCE OF CREEP OF NIMONIC 80A[J]. Metal Science Journal, 1973(9), 7:176-179
    37 Burt, H.; Dennison, J. P.; Wilshire, B.. FRICTION STRESS MEASUREMENTS DURING CREEP OF NIMONIC 105[J]. Metal Science, 1979(5), 13(5): 295-300
    38 Linga Murty, K.; Mohamed, F. A.; Dorn, J. E. . VISCOUS GLIDE, DISLOCATION CLIMB AND NEWTONIAN VISCOUS DEFORMATION MECHANISMS OF HIGH TEMPERATURE CREEP IN Al-3Mg[J]. Acta Metallurgica, 1972(8) , 20(8): 1009-1018
    39 Ping, D.-H.; Hono, K.; Nie, J.F. .Atom probe characterization of plate-like precipitates in a Mg-RE-Zn-Zr casting alloy[J]. Scripta Materialia, 2003(4), 48(8):1017-1022
    40 L.Y. Wei, G.L. Dunlop. Age hardening and precipitation in a cast magnesium-rare-earth alloy[J]. Journal of Materials Science, 1996 , 31:387-397
    41 刘正,张奎,曾小勤. 镁基轻质合金理论基础及其应用[M].北京:机械工业出版社, 2002.9
    42 潘金生,贡建民,田民波. 材料科学基础[M],北京:清华大学出版社,1998
    43 Shi, L.; Northwood, D.O. . Strain-hardening and recovery during the creep of pure polycrystalline magnesium[J]. Acta Metallurgica et Materialia, 1994(3), 42 (3): 871-877
    44 Y.Terada, N.Ishimatsu, R. Sota. Creep characteristics of Ca added die cast AM50 magnesium alloys[C], Magnesium alloy 2003, Materials Forum,419-422, 2003:459-464
    45 Agnew, S.R.; Liu, K.C.; Kenik, E.A.; Viswanathan, S. Tensile and compressive creep behavior of die cast magnesium alloy AM60B[C]. TMS Annual Meeting, 2000:285-290
    46 Regev, M.; Aghion, E.; Rosen, A.; Bamberger, M. Source:Creep studies of coarse-grained AZ91D magnesium castings[J]. Materials Science & Engineering A, 1998(8), 252(1): 6-16
    47 Regev, M.; Aghion, E.; Rosen, A. Source: Creep studies of AZ91D pressure die casting[J]. Materials Science & Engineering A, 1997(8), 234(23): 123-126
    48 Regev, M.; Aghion, E.; Berger, S.; Bamberger, M.; Rosen, A. . Dislocation analysis of crept AZ91D ingot castings[J]. Materials Science & Engineering A, 1998(12), 257(2): 349-352
    49 M.S.Dungush, G.L.Dunlop. Elevated temperature creep and mircrostructure of die cast Mg-Al alloys[C]. In Magnesium Alloys and Their Applications, ed.. by B.L.Mordike and K.U.Kainer, Frankfurt,Germany, 1998:277-282
    50 M.S.Dungush, G.L.Dunlop. The microstructure and creep behavior of die cast magnesium AZ91 and AS41 alloys[C]. Transactions of 19th International Die Casting Congress, North Ameriacan Die Casting Association, Rosemont, IL,1997: 131-137
    51 W.E. MercerII:Magnesium Die Cast Alloys for Elevated Temperature Applications[C], SAE Paper No. 900788, SAE, Warrendale, PA, USA,1990
    52 Chen, F.C.; Jones, J.W.; McGinn, T.A.; Kearns, J.E.; Nielsen, A.J.; Allison, J.E. Bolt-load retention and creep of die-cast magnesium alloys[C]. SAE Special Publications, 1250, 970325, 1997: 13-21
    53 A.A.Luo, B.R.Powell. Tensile and compressive creep of magnesium-aluminum-calcium based alloys [C]. In; J. Hryn, Ed. Magneium Technology 2001, New Orlands: Minerals, Metals & Materials Society, 2001:175-181
    54 M.S.Dungush, G.L.Dunlop. Elevated temperature creep and mircrostructure of die cast Mg-Al alloys[C]. In Magnesium Alloys and Their Applications, ed.. by B.L.Mordike and K.U.Kainer, Frankfurt,Germany, 1998:277-282
    55 M.S.Dungush, G.L.Dunlop. The microstructure and creep behavior of die cast magnesium AZ91 and AS41 alloys[C]. Transactions of 19th International Die Casting Congress, North Ameriacan Die Casting Association, Rosemont, IL,1997: 131-137
    56 Mclean D . Grain boundary dislocations, their effect on vacancies and sliding [J]. Phil Mag, 1971(2), 23(182): 467-72
    57 Dennison, J. P.; Holmes, P. D.; Wilshire, B..CREEP AND FRACTURE BEHAVIOUR OF THE CAST, NICKEL-BASED SUPERALLOY, IN100 [J]. Materials Science and Engineering, 1978(4), 33(1): 35-47
    58 Sadananda, K.; Shahinian, P. . PREDICTION OF THRESHOLD STRESS INTENSITY FOR FATIGUE CRACK GROWTH USING A DISLOCATION MODEL [J]. International Journal of Fracture, 1977(10), 13 (5): 585-594
    59 Sadananda, K.; Shahinian, P. .CREEP CRACK GROWTH IN ALLOY 718 [J]. Metallurgical Transactions A (Physical Metallurgy and Materials Science), 8(3), 1977(3): 439-449
    60 Davis P.W., Wilshire B.. Phil. Mag. 673(4),1965
    61 Gittins A.. S KINETICS OF CAVITY GROWTH IN 20 CR/25 NI STAINLESS STEEL. J Mater Sci, 1970(3), 5(3): 223-32
    62 Ishida Y., Mclean D. . Met. Sci.J., 171(1),1967
    63 McLean, D.; Dyson, B. F.; Taplin, D. M. R.. PREDICTION OF CREEP FRACTURE IN ENGINEERING ALLOYS [J]. Solid Wastes Management Refuse Removal Journal, 1978, 1: 325-362
    64 Dyson, B. F.; McLean, D.NEW METHOD OF PREDICTING CREEP LIFE [J]. Metal Science Journal, 1972(11), 6:220-223
    1 林裴[译]. 镁合金手册-工艺与性质[M]. 北京:冶金工业出版社,1959.8
    2 陈振华等. 镁合金[M]. 北京:化学工业出版社.2004.7
    3 J.F.Nie, X.L.Xiao. Characterization of precipitate phase in magnesium alloys using electron microdiffraction [J]. Micron. , 2001,32: 957-863
    4 Zh. Li, H. Zhang. Growth and morphology of βphase in an Mg-Y-Nd alloy[J]. Materials Letters, 2004, 58: 3021-3024
    5 美国金属学会. 金属手册[M]. 北京:机械工业出版社,1994.4
    6 刘正,张奎,曾小勤. 镁基轻质合金理论基础及其应用[M]. 北京:机械工业出版社,2002
    7 邢淑仪, 王世洪. 铝合金和钛合金[M]. 北京: 机械工业出版社,1987
    8 约翰.D.费豪文. 物理冶金学基础[M]. 上海:上海科学技术出版社,1980
    9 长崎诚三, 平林真. 二元合金状态图集[M]. 北京:冶金工业出版社, 2004
    10 潘金生, 仝健民, 田民波. 材料科学基础[M]. 北京:清华大学出版社,1993
    11 B.Inem. Dynamic recrystallization in a thermomechanically processed metal matrix composite[J] . J. Mater. Sci., 1995,197(1):91-95
    12 Bramfitt B.L. The effects of carbide and nitride additions on heterogeneous nucleation behavior of liquid iron. Metall. Trans., 1970,1(7):1987-1991
    13 哈宽富. 金属力学性质的微观理论[M]. 北京:科学出版社,1983
    14 Crossland I. G., Jones R. B. GRAIN BOUNDARY DIFFUSION CREEP IN MAGNESIUM [J]. Metal Science, 1977(11), 11(11): 504-508
    15 Saddock Nicholas, David Pollock, Tresa M.. Inspection of grain boundary sliding in die-cast Mg alloys during creep deformation via strain mapping techniques [J]. JOM, 2004(11) , 56 (11): 84
    16 Somekawa Hidetoshi,Watanabe Hiroyuki.The effect of temperature and flow stress for climb-controlled dislocation creep in magnesium alloy[J]. Materials Science Forum, 2003, 426-432(1): 605-610
    1 K. E. Nelson. Magnesium die casting alloys[C]. SDCE Transactions, Paper No.13,1970
    2 Mercer, William E. II. Magnesium die cast alloys for elevated temperature applications[C]. SAE Technical Paper Series, 1990, 12p 900788
    3 I.P. Moreno, T.K. Nandy, J.W. Jones,et al. Microstructure and creep behavior of a die cast magnesium rare earth alloy [C]. In: H.I. Kaplan Ed. Magnesium Technology 2002. Seattle: Minerals, Metals & Materials Society, 2002:111-116
    4 S.Xue, Y.-S Sun, S. –S Ding et al, Effects of Calcium additions on microstructure and creep behavior of AE42 alloy[J], Materials science and technology, 2005(7), 21(7): 847-853
    5 Bob R. Powell, Vadim Rezhets, Michael P. Balogh et al. The relationship between microstructure and creep behavior in AE42 magnesium die casting alloy [C]. In; J. Hryn, Ed. Magneium Technology 2001, New Orlands: Minerals, Metals & Materials Society, 2001:175-181
    6 XUE Shan, SUN Yang-shan etc. Creep resistance of Mg-4%Al-2%RE-2%Ca alloy Trans. Nonferrous Met. Soc. China, 2005(8), 15(4):863~867
    7 Chung Yeon Jun,Shin Kwang Seon. Effects of alloying elements on the microstructure and high-temperature mechanical properties of Mg-Al alloys Magnesium Technology[C], Magnesium Technology 2005 , 2005: 425-428
    8 闵学刚. 几种合金元素对改善 AZ 91 合金显微组织和力学性能的研究[D]. [博士论文].南京:东南大学,2002.8
    9 长崎诚三, 平林真.二元合金状态图集[M]. 北京:冶金工业出版社, 2004
    10 Argo D. ,Pekguleryuz M.,Labelle P.,Dierks M.. Diecastability and properties of Mg-Al-Sr based alloys[C]. TMS Annual Meeting, 2001: 131-136
    11 Kim Jeong-Min, Park Bong-Koo, Shin Keesam. Development of Mg-Al-Zn based diecasting alloys for elevated temperature applications[J]. Materials Science Forum, 2005, 475-479 (1):525-528
    12 Wenwen Du, Yangshan Sun, Xuegang Min.Microstructure and mechanical properties of Mg-Al based alloy with calcium and rare earth additions [J]. Materials Science and Engineering A, 2003(9), 356(1-2): 1-7
    13 Powell B. Development of GM calcium-containing, creep-resistant magnesium alloys for powertrain applications [C]. DING Weinan.. Sinomag Die Casting Magnesium Seminar. Beijing: Sinomag Magnesium Seminar 2002:14-25
    14 American Society for Metals. Metals Handbook. Ohio: Metals Park,1973
    15 R.W. Cahn, P. Haasen. Physical Metallurgy[M]. Published by North-Holland Publishing, NewYork, USA ,1983: 1309-1340
    16 候增寿,卢广熙. 金属学原理[M]. 上海:上海科学技术出版社,1990
    17 Inem, B. Crystallography of the second phase/SiC particles interface, nucleation of the second phase at β-SiC and its effect on interfacial bonding, elastic properties and ductility of magnesium matrix composites [J]. Journal of Materials Science, 1995(11), 30(22): 5763-5769
    18 Bramfitt B.L. The effects of carbide and nitride additions on heterogeneous nucleation behavior of liquid iron [J]. Metall. Trans., 1970, 1(7):1987-1991
    19 A. Luo. Understanding the Solidification of Magnesium Alloys[C]. Proceeding of the Third International Magnesium Conference, edited by G. W. Lorimer, 1997.
    20 R.W. 卡恩, P. 哈森(美〕.复合材料的结构与性能[M]. 北京:冶金工业出版社,2001
    21 McLean D. Grain boundary dislocations, their effect on vacancies and sliding [J]. Phil Mag, 1971(2), 23(182):467-72
    22 S. Spigarell. CREEP OF A THIXOFORMED AND HEAT TREATED AZ91 Mg-Al-Zn ALLOY [J]. Scripta mater., 2000 , 42: 397–402
    23 平修二(日). 金属材料的高温强度. 科学出版社, 1983
    24 肖小玲,罗承萍. AZ91 Mg-Al 合金中β-(Mg17Al12)析出相的形态及其晶体学特征[J].金属学报,2001, 37(1):1-7
    25 D. Bradai, M. Kadi-Hanifi. The kinetics of the discontinuous precipitation and dissolution in Mg-rich Al alloys [J]. Journal of Materials Science, 1999, 34:5331-5336
    26 薛山, 孙扬善. Ca 和 Sr 对 AE42 合金蠕变性能的影响[J]. 东南大学学报, 2005(3), 35(2):261~265

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