高性能粉末高温合金长期时效γ′相粗化动力学
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- 英文论文题名：Gamma Prime Phase Coarsening Kinetics in Nickel-based P/M Superalloy During Long Time Aging
- 论文作者：闫飞 ; 刘国权 ; 张义文 ; 吴凯 ; 胡本芙
- 英文论文作者：Yan Fei ; Liu Guoquan ; Zhang Yiwen ; Wu Kai ; Hu Benfu ; School of Materials Science and Engineering ; University of Science and Technology Beijing ; Collaborative Innovation Center of Steel Technology ; High Temperature Materials Research Division ; Central Iron & Steel Research Institute Beijing
- 年：2015
- 作者机构：北京科技大学材料科学与工程学院;钢铁共性技术协同创新中心;钢铁研究总院高温材料研究所;
- 论文关键词：镍基粉末高温合金 ; 长期时效 ; γ′相 ; LSW粗化理论
- 英文论文关键词：nickel-based powder metallurgy superalloy ; long time aging ; gamma prime phase ; LSW coarsening theory
- 会议召开时间：2015-05-20
- 会议录名称：第十三届中国高温合金年会论文集
- 英文会议录名称：Proceedings of the 13th China Superalloys Conference
- 语种：中文
- 分类号：TG132.3
- 学会代码：ZGJS
- 会议名称：第十三届中国高温合金年会
- 会议地点：中国北京
- 主办单位：中国金属学会高温材料分会
- 学会名称：中国金属学会
- 页数：4
- 文件大小：215k
- 原文格式：O
- 会议级别：全国
摘要
本文对第三代粉末高温合金涡轮盘坯对热处理长期时效过程中γ′相的形态和粗化现象进行观察和调查,在此基础上对修正的LSW(Lifshitz,Slyozov and Wagner)粗化理论进行再验证,提出一个更能描述三代多组元镍基粉末高温合金长期时效中γ′相粗化速率的计算方法,获得良好的效果。
It is necessary to predict the size of gamma prime to predict the service life.Coarsening behavior of γ' phase during long time aging has been studied,and LSW coarsening Theory has been modified to describe coarsening phenomenon of gamma prime of third generation nickel-based superalloy.
It is necessary to predict the size of gamma prime to predict the service life.Coarsening behavior of γ' phase during long time aging has been studied,and LSW coarsening Theory has been modified to describe coarsening phenomenon of gamma prime of third generation nickel-based superalloy.
引文
[1]Li X,Saunders N,et al.The coarsening kinetics ofγ'particles in nickel-based alloys[J].Metallurgical and Materials Transactions A,2002,33(11):3367~3373.
[2]Jou H J.Microstructure Modeling of 3rd Generation Disk Alloys—2nd Annual Report,December 2008,1~27.
[3]Ardell A J.An application of the theory of particle coarsening:Theγ'precipitate in Ni-Al alloys[J].Acta Metallurgica,1968,16(4):511~516.
[4]Ardell A J.The effect of volume fraction on particle coarsening:theoretical considerations[J].Acta metallurgica,1972,20(1):61~71.
[2]Jou H J.Microstructure Modeling of 3rd Generation Disk Alloys—2nd Annual Report,December 2008,1~27.
[3]Ardell A J.An application of the theory of particle coarsening:Theγ'precipitate in Ni-Al alloys[J].Acta Metallurgica,1968,16(4):511~516.
[4]Ardell A J.The effect of volume fraction on particle coarsening:theoretical considerations[J].Acta metallurgica,1972,20(1):61~71.