固溶时效深冷处理对ZQAl10-3-1.5合金摩擦磨损性能的影响
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摘要
对ZQAl10-3-1.5合金进行不同的处理工艺处理,利用光学显微镜、万能材料试验机、全自动显微硬度仪以及扫描电镜分析了合金处理前后的显微组织、力学性能、磨损量以及磨损形貌的变化。结果表明:铸态合金以黏着磨损为主,T6态合金以黏着磨损和重度磨粒磨损为主,T6态合金经过深冷处理后则主要以磨粒磨损为主;T6态合金进行适当的深冷处理可以细化晶粒,降低空位密度,增大位错密度,增强致密性,显著提高合金的硬度和耐磨性,但是随着深冷时间的延长,ZQAl10-3-1.5合金的磨损量和平均摩擦系数会出现先降低后增加的趋势。
Microstructure,mechanical properties,wear morphology and wear resistance of ZQAl10-3-1. 5 alloy before and after solid solution and aging and cryogenic treatment were investigated by means of optical microscope,universal material testing machine,automatic micro-hardness test and scanning electron microscopy( SEM). The results show that the wear mechanism of the as-cast ZQAl10-3-1. 5 alloy is mainly adhesive wear,while the alloy after solid solution and aging treatment( T6 state) is mainly adhesive wear and severe abrasive wear,and the alloy after solid solution and aging and cryogenic treatment is mainly abrasive wear. The grain of the T6 alloy after proper cryogenic treatment is refined,the vacancy density is reduced,the dislocation density increases,and the hardness and wear resistance of the alloy are greatly improved. But with the increasing of cryogenic time,the wear mass loss and average friction coefficient of the alloy decrease first then increase.
Microstructure,mechanical properties,wear morphology and wear resistance of ZQAl10-3-1. 5 alloy before and after solid solution and aging and cryogenic treatment were investigated by means of optical microscope,universal material testing machine,automatic micro-hardness test and scanning electron microscopy( SEM). The results show that the wear mechanism of the as-cast ZQAl10-3-1. 5 alloy is mainly adhesive wear,while the alloy after solid solution and aging treatment( T6 state) is mainly adhesive wear and severe abrasive wear,and the alloy after solid solution and aging and cryogenic treatment is mainly abrasive wear. The grain of the T6 alloy after proper cryogenic treatment is refined,the vacancy density is reduced,the dislocation density increases,and the hardness and wear resistance of the alloy are greatly improved. But with the increasing of cryogenic time,the wear mass loss and average friction coefficient of the alloy decrease first then increase.
引文
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[2]Kimura T,Shimizu K,Terada K.Slidingwear characteristic evaluation of copper alloy for bearing[J].Wear,2007,263:586-91.
[3]何勇.QAl10-5-5铝青铜热处理工艺的研究[J].国外金属热处理,2005,26(2):12-18.HE Yong.Research on heat treatment of QAl10-5-5 aluminum bronze[J].Heat Treament of Metals Abroad,2005,26(2):12-18.
[4]邓黎辉,汪宏斌,李绍宏,等.高强韧冷作模具钢深冷处理性能及组织[J].材料热处理学报,2011,32(4):76-81.DENG Li-hui,WANG Hong-bin,LI Shao-hong,et al.Microstructure and properties of a high strength tool steel after cryogenic treatment[J].Transactions of Materials and Heat Treatment,2011,32(4):76-81.
[5]Zhirafar S.Effect of cryogenic treatment on the mechanical progress of steel and aluminum alloys[J].Montreal Canada Masterthesis of Concordia University,2005,186(3):253-256.
[6]林高用,王莉,许秀芝,等.固溶时效对QAl9-4-3铝青铜组织和性能的影响[J].中国有色金属学报,2013,23(3):680-685.LIN Gao-yong,WANG Li,XU Xiu-zhi,et al.Effect of solution and aging treatment on microstructure and properties of QAl9-4-3aluminum bronze[J].Transactions of Nonferrous Metals Society of China,2013,23(3):680-685.
[7]冯耀荣.高强度铝青铜热处理工艺的研究[J].金属热处理,1990(6):7-12.FENG Yao-rong.The Investigation on Heat Treatment processes for high strength aluminum bronze[J].Heat Treatment of Metals,1990,(6):7-12.
[8]Ji V,Zhang Y G,Chen C Q.The non-destructive estimation of the superficial mechanical properties of components in the INCONEL600 alloy by X-ray diffraction peak width[J].Surface and Coatings Technology,2000,130(1):95-99.
[9]汤光平,黄文荣.循环处理对铝合金力学性能和组织结构的影响[J].金属热处理,1998,25(5):35-38.TANG Guang-ping,HUANG Wen-rong.Effect of cyclic treatment on mechanical properties and structure of Al Alloys[J].Heat Treatment of Metals,1998,25(5):35-38.
[10]汤光平,黄文荣.循环处理对铝合金尺寸稳定性的影响[J].金属热处理,1999(10):11-14.TANG Guang-ping,HUANG Wen-rong.Effect of cyclic treatment on dimensional stabilization of Al alloys[J].Heat Treatment of Metals,1999(10):11-14.
[11]张胜全,尹赟,李鹏.固溶、时效、深冷处理对QAl9-4铝青铜组织及性能的影响[J].材料热处理学报,2014,35(10):39-43.ZHANG Sheng-quan,YIN Yun,LI Peng.Effect of solution and aging and cryogenic treatment on microstructure and properties of QAl9-4 aluminum bronze[J].Transactions of Materials and Heat Treatment,2014,35(10):39-43.
[12]王秋成,柯映林.深冷处理消除7050铝合金残余应力的研究[J].浙江大学学报,2003,37(6):746-751.WANG Qiu-cheng,KE Ying-lin.Relief of residual stresses in 7050 aluminum alloy by deep cryogenic treatment[J].Journal of Zhejiang University,2003,37(6):746-751.
[13]万浩,司乃潮,李萌,等.稀土对Cu Al9 Fe4 Ni4 Mn2合金性能的影响[J].稀土,2015,36(3):27-32.WAN Hao,SI Nai-chao,LI Meng,et al.Effect of rare earth on properties of casting Cu Al9Fe4Ni4Mn2 alloy[J].Chinese Rare Earths,2015,36(3):27-32.
[14]Karpov L P.Treatment of metals in the liquid nitrogen with subsequent“rest”at room temperature[J].Metal Science and Heat Treatment,1996,38(34):125-127.
[15]Molinari A,Pellizzari M,Gialanella S.Effect of deep cryogenic treatment on the mechanical properties of tool steels[J].Journal of Materials Processing Technology,2001,118(1/3):350-355.
[16]An L L,Li S Y,Yuan Z Z.The influence of cryogenic treatment on conductivity and strength properties of Cu-Ni-Sn-Zr polybasic copper alloy[J].Materials for Mechanical Engineering,2003,27(6):33-35.
[17]黄云战,晋芳伟.深冷处理对铜合金组织性能的影响[J].金属热处理,2001,26(7):5-6.HUANG Yun-zhan,JIN Fang-wei.Effect of cryogenic treatment on microstructure and property of copper alloys[J].Heat Treatment of Metals,2001,26(7):5-6.
[18]Tae-Dong Park,Dae-Young Kim,Joong-Geun Youn.A study on factors determining tensile properties of Ni-Al bronze casting[J].Journal of University of Science and Technology Beijing,2002,9(6):461-465.
[19]张文达,杨晶,党惊知,等.深冷处理对黄铜组织与力学性能的影响[J].材料热处理学报,2013,34(1):127-131.ZHANG Wen-da,YANG Jing,DANG Jing-zhi,et al.Effects of cryogenic treatment on microstructure and mechanial properties of brass[J].Transactions of Materials and Heat Treatment,2013,34(1):127-131.
[20]安丽丽,李士燕,袁子洲,等.深冷处理对Cu-Ni-Sn-Zr多元铜合金导电性及强度的影响[J].机械工程材料,2003,27(6):33-35.AN Li-li,LI Shi-yan,YUAN Zi-zhou.The influence of cryogenic treatment on conductivity and strength properties of Cu-Ni-Sn-Zr polybasic copper alloy[J].Materials for Mechanical Engineering,2003,27(6):33-35.
[21]张胜全,尹赟,李鹏.深冷处理对铝青铜合金组织和性能的影响[J].金属热处理,2015,40(2):169-172.ZHANG Sheng-quan,YIN Yun,LI Peng.Effect of cryogenic treatment on microstructure and properties of QAl9-4 aluminum bronze[J].Heat Treatment of Metals,2015,40(2):169-172.