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个人信息Personal Information
副教授 硕士生导师
招生学科专业：
航空宇航科学与技术 -- 【招收硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收硕士研究生】 -- 能源与动力学院
毕业院校：清华大学
学位：工学博士学位
所在单位：能源与动力学院
联系方式：Email: hanqn at nuaa.edu.cn
Subsurface crack formation and propagation of fretting fatigue in Ni-based single-crystal superalloys
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所属单位：能源与动力学院
发表刊物：FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
关键字：crystal plasticity simulation fretting fatigue Ni-based single-crystal superalloys subsurface crack
摘要：The fretting fatigue crack formation and propagation behaviors of Ni-based single-crystal (NBSX) superalloys are investigated in this paper. Subsurface crack formation process is revealed by in situ fretting fatigue experiment. The crack is observed to form on subsurface area, then propagates to the contact surface. Inclusions in materials are found to have obvious effects on crack propagation, and slip lines are closely related to the crack propagation direction. Crystal plastic finite element method (CPFEM) simulation is used to simulate crack formation position. The accumulative plastic strain peaks at the edge of contact zone and the subsurface area. The results show that the CPFEM simulation and in situ observation achieve good agreements.
ISSN号：8756-758X
是否译文：否
发表时间：2019-11-01
合写作者：Rui, Shao-Shi,Qiu, Wenhui,Su, Yue,Ma, Xianfeng,He, Zhiwu,崔海涛,张宏建,Shi, Hui-Ji
通讯作者：韩琦男