Ru对镍基单晶合金组织结构与蠕变行为的影响
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- 英文论文题名：Influence of Element Re on Microstructure and Creep Behavior of Single Crystal Nickel-Base Superalloy
- 论文作者：朱新杰 ; 田素贵 ; 李秋阳 ; 梁爽
- 英文论文作者：ZHU Xin-Jie ; TIAN Su-gui ; LI Qiu-Yang ; LIANG Shuang ; School of Materials Science and Engineering ; Shenyang University of Technology
- 年：2016
- 作者机构：沈阳工业大学材料科学与工程学院;
- 论文关键词：单晶镍基合金 ; 元素Ru ; 组织结构 ; TCP相 ; 蠕变 ; 变形特征
- 英文论文关键词：Single crystal nickel-based superalloy ; Element Ru ; microstructure ; TCP phase ; creep ; Deformation feature
- 会议召开时间：2016-07-19
- 会议录名称：第十五届全国金相与显微分析学术年会论文集
- 语种：中文
- 分类号：TG146.15
- 学会代码：EGTA
- 会议名称：第十五届全国金相与显微分析学术年会
- 会议地点：中国青海西宁
- 主办单位：中国体视学学会金相与显微分析分会
- 学会名称：中国体视学学会
- 页数：10
- 文件大小：3097k
- 原文格式：O
- 会议级别：全国
摘要
通过对有/无Ru单晶镍基合金进行长期时效、蠕变性能测试及组织形貌观察,研究了元素Ru对镍基单晶合金组织结构与蠕变行为的影响。结果表明,无Ru-6%W-6%Mo单晶镍基合金在1080℃长期时效期间沿{111}晶面析出富含难熔元素的针状TCP相,确定出该TCP相为相,6%W-6%Mo合金中加入2%Ru后,可抑制合金中析出TCP相。与无Ru-6%W-6%Mo合金相比,6%W-6%Mo合金加入2%Ru后,可使单晶合金在980℃/200MPa的蠕变寿命由123h提高到275h,寿命提高幅度达123.6%。合金在蠕变期间的变形机制是位错在基体中滑移和剪切γ′相,蠕变后期,主、次滑移位错的交替开动,致使其筏状γ′相转变成不规则的扭曲形态。与2%Ru合金相比,无Ru合金中析出了大量的针状相,可致使其在近针状相区域发生裂纹的萌生与扩展,是无Ru合金具有较低蠕变抗力和较短蠕变寿命的主要原因。
By means of long-term aged treatment,creep properties measurement and microstructure observation,the influence of the element Ru on the microstructure and creep behavior of single crystal nickel-based superalloy is investigated.The results show that,during long-term aging for 200 h at 1080℃,the needle-like TCP phase which is identified as the one is precipitated along the {111} plane of the 6%W-6%Mo single crystal nickel-based superalloy,and the precipitation of TCP phase may be restrained by means of adding the element Ru.Compared to the free-Ru superalloy,the creep life of the 2%Ru-6%W-6%Mo superalloy increases from 123 h to 275 h at980℃/200 MPa,the enhanced extent of the creep life is about 123.6%.The deformation mechanism of superalloy during steady state creep is the dislocation slipping in the matrix and climbing over the rafted γ' phase.The deformation mechanism of superalloy in the later stage of creep is the dislocation slipping in the matrix and shearing into the rafted γ' phase.As the creep goes on,the alternated activation of the primary/second slipping dislocations shears the rafted γ' phase,which results in the twisted of the one to cause the initiation and propagation of the crack along the interface of the rafted γ'/γ phases,up to the occurrence of creep fracture.Compared to the 2%Ru superalloy,the needle-like phase precipitated in the free-Ru superalloy may promote the initiation and propagation of the crack in the region near the needle-like phase,which is thought to be the main reason of the free-Ru alloy having a lower creep resistance and shorter creep lifetime.
By means of long-term aged treatment,creep properties measurement and microstructure observation,the influence of the element Ru on the microstructure and creep behavior of single crystal nickel-based superalloy is investigated.The results show that,during long-term aging for 200 h at 1080℃,the needle-like TCP phase which is identified as the one is precipitated along the {111} plane of the 6%W-6%Mo single crystal nickel-based superalloy,and the precipitation of TCP phase may be restrained by means of adding the element Ru.Compared to the free-Ru superalloy,the creep life of the 2%Ru-6%W-6%Mo superalloy increases from 123 h to 275 h at980℃/200 MPa,the enhanced extent of the creep life is about 123.6%.The deformation mechanism of superalloy during steady state creep is the dislocation slipping in the matrix and climbing over the rafted γ' phase.The deformation mechanism of superalloy in the later stage of creep is the dislocation slipping in the matrix and shearing into the rafted γ' phase.As the creep goes on,the alternated activation of the primary/second slipping dislocations shears the rafted γ' phase,which results in the twisted of the one to cause the initiation and propagation of the crack along the interface of the rafted γ'/γ phases,up to the occurrence of creep fracture.Compared to the 2%Ru superalloy,the needle-like phase precipitated in the free-Ru superalloy may promote the initiation and propagation of the crack in the region near the needle-like phase,which is thought to be the main reason of the free-Ru alloy having a lower creep resistance and shorter creep lifetime.
引文
[1]Hu Zhuang-qi,Liu Li-rong,Jin Tao,Sun Xiao-feng.Development of Ni-base single crystal superalloy[J].Aeroengine,2005,31(3):1.
[2]Sun Fei,Zhang Jian-xin.Influence of Ru on microstructure of Ni-base single crystal superalloy[J].Transcations of materials and heat treatment,2001,32(10):1.
[3]郭建亭.高温合金在能源工业领域中的应用现状与发展[J].金属学报,2010,46(5):513-527.Guo Jian-ting.The current situation of application and development superalloys in the fields of energy industry[J].Acta metallurgica sinica,2010,46(5):513-527.
[4]Fuchs G E.Solution heat treatment response of a third generation single crystal Ni-base superalloy[J].Materials Science and Engineering A,2001,300(1-2):52-60.
[5]Li Shuang-ming,Du Wei,Zhang Jun,et al.Solidified microstructure evolution of a transitional zone in CMSX-2 single crystal superalloy under high-temperature gradient directional solidification[J].Acta Metallurgica Sinica,2002,38(11):1195-1198.
[6]Zhang J X,Murakamo T,Koizumi Y,Kobayashi T,Harada H.Slip geometry of dislocations related to cutting of theγ'phase in a new generation single-crystal superalloy[J].Acta Materialia,2003,51(17):5073-5081.
[7]刘阳,郑启,杨金侠,纪曼青,肖璇.一种镍基单晶高温合金的热处理工艺研究[J].材料导报,2011,25:500.
[8]田素贵,李秋阳,郭忠革,薛永超,曾征,舒德龙,谢君.固溶温度对单晶镍基合金成分偏析和蠕变行为的影响[J].中国有色金属学报,2014,24(3):672-673.Tian Su-gui,Li Qiu-yang,Guo Zhong-ge,Xue Yong-chao,Zeng Zheng,Shu De-long,Xie Jun.Influence of solution temperature on composition segregation and creep behaviors of single crystal nickel base superalloy[J].The Chinese journal of Nonferrous metals,2014,24(3):672-673.
[9]侯介山,丛培娟,周兰章,秦学智,袁超,郭建亭.Hf对抗热腐蚀镍基高温合金微观组织和力学性能的影响[J].中国有色金属学报,2011,21(5):945-953.Hou Jie-shan,Cong Pei-shan,Zhou Lan-zhang,Qin Xue-zhi,Yuan Chao,Guo Jian-ting.Effect of Hf on microstructure and mechanical behavior of hot corrosion resistant Ni-base superalloy[J].The Chinese journal of Nonferrous metals,2011,21(5):945-953.
[10]黄志伟,袁福河,王中光,朱世杰,王富岗.M38镍基高温合金高温低周疲劳性能及断裂机制[J].金属学报,2007,43(10):1025-1030.Huang Zhi-wei,Yuan Fu-he,Wang Zhong-guang,Zhu Shi-jie,Wang Fu-gang.Low cycle fatigue properties and fracture mechanisms of M38 Nickel base superalloy at high temperature[J].Acta Metallurgica sinica,2007,43(10):1025-1030.
[11]Yeh A C,Tin S.Effects of Ru and Re additions on high temperature flow stresses of nickel-base single crystal superalloys[J].Scripta Material,2005,52:519-526
[12]Rae C M F,Reed R C.Precipitation of topologically close-packed phases in rhenium-containing Superalloys[J].Acta Mater,2001,49:4113-4120.
[13]Feng Q,Nandy T K,Pollock T M.The Re(Ru)-rich 8-phase in Ru-containing superalloys[J].Materials Science and Engineering A,2004,373(1-2):239-249.
[14]Gnihpel H T,Reimers W.Stress states in the creep deformed single crystal Ni-base superalloy SC16[J].Scripta Metallurgica et Materialia,1995,33(4):615-621
[15]刘刚,刘林,张胜霞,杨初斌,张军,傅恒志.Re和Ru对镍基单晶高温合金组织偏析的影响[J].金属学报,2012,48(7):845-852.Liu Gang,Liu Lin,Zhang Sheng-xia,Yang Chu-bin,Zhang Jun,Fu Heng-zhi.Effect of Re and Ru on microstructure and segregation of Ni-based single-crystal superalloys[J].Acta Metallurgica sinica,2012,48(7):845-852.
[16]Hedge S R,Kearsey R M,Beddoes J C,Designing homogenization-solution heat treatments for single crystal superalloys[J].Materials Science and Engineering A,2010,527(21-22):5528-5538.
[17]倪莉,张军,王博,刘林,傅恒志.镍基高温合金设计的研究发展[J].材料导报,2014,2(28):1-6.Ni Li,Zhang Jun,Wang Bo,Liu Lin,Fu Heng-zhi.Progress in alloy design of Nickel-based superalloys[J].Materials Review,2014,2(28):1-6.
[18]田素贵,钱本江,李唐,于丽莉,王明罡.镍基单晶合金中TCP相的析出行为及其对持久性能的影川.中国有色金属学报,2011,20(11):2154-2161.Tian Su-gui,Qian Ben-jiang,Li Tang,Yu Li-li,Wang Ming-gang.Precipitation behavior of TCP phase and its influence on stress rupture property of single crystal Ni-base superalloy[J].The Chinese journal of Nonferrous Metals,2011,20(11):2154-2161.
[19]郑亮,谷臣清,郑运荣.Ru对铸造镍基高温合金凝固行为的影响[J].中国有色金属学报,2002,12(6):1109-1204.Zheng Liang,Gu Qiang-chen,Zheng Yun-rong.Effect of Ru addition solidification behavior of cast nickel base superalloy[J].The Chinese journal of Nonferrous Metals,2002,12(6):1109-1204.
[2]Sun Fei,Zhang Jian-xin.Influence of Ru on microstructure of Ni-base single crystal superalloy[J].Transcations of materials and heat treatment,2001,32(10):1.
[3]郭建亭.高温合金在能源工业领域中的应用现状与发展[J].金属学报,2010,46(5):513-527.Guo Jian-ting.The current situation of application and development superalloys in the fields of energy industry[J].Acta metallurgica sinica,2010,46(5):513-527.
[4]Fuchs G E.Solution heat treatment response of a third generation single crystal Ni-base superalloy[J].Materials Science and Engineering A,2001,300(1-2):52-60.
[5]Li Shuang-ming,Du Wei,Zhang Jun,et al.Solidified microstructure evolution of a transitional zone in CMSX-2 single crystal superalloy under high-temperature gradient directional solidification[J].Acta Metallurgica Sinica,2002,38(11):1195-1198.
[6]Zhang J X,Murakamo T,Koizumi Y,Kobayashi T,Harada H.Slip geometry of dislocations related to cutting of theγ'phase in a new generation single-crystal superalloy[J].Acta Materialia,2003,51(17):5073-5081.
[7]刘阳,郑启,杨金侠,纪曼青,肖璇.一种镍基单晶高温合金的热处理工艺研究[J].材料导报,2011,25:500.
[8]田素贵,李秋阳,郭忠革,薛永超,曾征,舒德龙,谢君.固溶温度对单晶镍基合金成分偏析和蠕变行为的影响[J].中国有色金属学报,2014,24(3):672-673.Tian Su-gui,Li Qiu-yang,Guo Zhong-ge,Xue Yong-chao,Zeng Zheng,Shu De-long,Xie Jun.Influence of solution temperature on composition segregation and creep behaviors of single crystal nickel base superalloy[J].The Chinese journal of Nonferrous metals,2014,24(3):672-673.
[9]侯介山,丛培娟,周兰章,秦学智,袁超,郭建亭.Hf对抗热腐蚀镍基高温合金微观组织和力学性能的影响[J].中国有色金属学报,2011,21(5):945-953.Hou Jie-shan,Cong Pei-shan,Zhou Lan-zhang,Qin Xue-zhi,Yuan Chao,Guo Jian-ting.Effect of Hf on microstructure and mechanical behavior of hot corrosion resistant Ni-base superalloy[J].The Chinese journal of Nonferrous metals,2011,21(5):945-953.
[10]黄志伟,袁福河,王中光,朱世杰,王富岗.M38镍基高温合金高温低周疲劳性能及断裂机制[J].金属学报,2007,43(10):1025-1030.Huang Zhi-wei,Yuan Fu-he,Wang Zhong-guang,Zhu Shi-jie,Wang Fu-gang.Low cycle fatigue properties and fracture mechanisms of M38 Nickel base superalloy at high temperature[J].Acta Metallurgica sinica,2007,43(10):1025-1030.
[11]Yeh A C,Tin S.Effects of Ru and Re additions on high temperature flow stresses of nickel-base single crystal superalloys[J].Scripta Material,2005,52:519-526
[12]Rae C M F,Reed R C.Precipitation of topologically close-packed phases in rhenium-containing Superalloys[J].Acta Mater,2001,49:4113-4120.
[13]Feng Q,Nandy T K,Pollock T M.The Re(Ru)-rich 8-phase in Ru-containing superalloys[J].Materials Science and Engineering A,2004,373(1-2):239-249.
[14]Gnihpel H T,Reimers W.Stress states in the creep deformed single crystal Ni-base superalloy SC16[J].Scripta Metallurgica et Materialia,1995,33(4):615-621
[15]刘刚,刘林,张胜霞,杨初斌,张军,傅恒志.Re和Ru对镍基单晶高温合金组织偏析的影响[J].金属学报,2012,48(7):845-852.Liu Gang,Liu Lin,Zhang Sheng-xia,Yang Chu-bin,Zhang Jun,Fu Heng-zhi.Effect of Re and Ru on microstructure and segregation of Ni-based single-crystal superalloys[J].Acta Metallurgica sinica,2012,48(7):845-852.
[16]Hedge S R,Kearsey R M,Beddoes J C,Designing homogenization-solution heat treatments for single crystal superalloys[J].Materials Science and Engineering A,2010,527(21-22):5528-5538.
[17]倪莉,张军,王博,刘林,傅恒志.镍基高温合金设计的研究发展[J].材料导报,2014,2(28):1-6.Ni Li,Zhang Jun,Wang Bo,Liu Lin,Fu Heng-zhi.Progress in alloy design of Nickel-based superalloys[J].Materials Review,2014,2(28):1-6.
[18]田素贵,钱本江,李唐,于丽莉,王明罡.镍基单晶合金中TCP相的析出行为及其对持久性能的影川.中国有色金属学报,2011,20(11):2154-2161.Tian Su-gui,Qian Ben-jiang,Li Tang,Yu Li-li,Wang Ming-gang.Precipitation behavior of TCP phase and its influence on stress rupture property of single crystal Ni-base superalloy[J].The Chinese journal of Nonferrous Metals,2011,20(11):2154-2161.
[19]郑亮,谷臣清,郑运荣.Ru对铸造镍基高温合金凝固行为的影响[J].中国有色金属学报,2002,12(6):1109-1204.Zheng Liang,Gu Qiang-chen,Zheng Yun-rong.Effect of Ru addition solidification behavior of cast nickel base superalloy[J].The Chinese journal of Nonferrous Metals,2002,12(6):1109-1204.