摘要
激光冲击处理可促使材料产生较传统表面强化工艺更优的强化效果,并且诱发的显微组织变化具有更高的热稳定性,有望对高温合金材料的服役性能提升产生有利作用。分别从表面形貌、显微组织、服役性能等方面介绍激光冲击强化在不同高温合金材料上的应用研究成果。通过激光冲击诱导高温合金微尺度表面形貌变化相关研究的分析,提出对激光冲击诱导局部反向变形进行数值仿真验证的研究方向。总结激光冲击强化在改善高温合金组织状态以及提升疲劳等服役性能方面的研究成果,进而指明单晶高温合金激光冲击疲劳延寿研究的必要性。
Laser shock processing(LSP)can produce better strengthening effect than the traditional surface strengthening processes,and the induced microstructure change has higher thermal stability,which is expected to have a beneficial effect on the service performance of superalloy materials.The applications of LSP on different superalloy materials were introduced from the aspects of surface topography,microstructure and service performance.The research direction of numerical simulation and verification of local reverse deformation induced by LSP was proposed through the analysis of the LSP-induced microscale surface topography of superalloy.The research results of LSP in improving the microstructure and fatigue performance of superalloy were summarized,and then the study necessity of LSP fatigue prolonging for single crystal superalloy was indicated.
作者
卢国鑫
金涛
周亦胄
赵吉宾
刘纪德
乔红超
孙晓峰
LU Guo-xin;JIN Tao;ZHOU Yi-zhou;ZHAO Ji-bin;LIU Ji-de;QIAO Hong-chao;SUN Xiao-feng(Superalloys Division,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;School of Electra Mechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China;Equipment Manufacturing Technology Laboratory,Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110179,China)
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2018年第9期1755-1764,共10页
The Chinese Journal of Nonferrous Metals
基金
国家高技术研究发展计划资助项目(2014AA041701)
国家自然科学基金资助项目(51331005
11332010)
辽宁省自然科学基金资助项目(2015020115)
沈阳材料科学国家(联合)实验室基础前沿及共性关键技术创新项目(单晶高温合金的激光冲击诱导组织结构演化)~~
关键词
激光冲击强化
高温合金
表面形貌
组织
性能
laser shock processing
superalloy
surface topography
microstructure
property
