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Effect of thermal induced porosity on high-cycle fatigue and very high-cycle fatigue behaviors of hot-isostatic-pressed Ti-6Al-4V powder components

文献类型：期刊论文

作者Cheng, Min2; Lu, Zhengguan1; Wu, Jie1; Guo, Ruipeng2; Qiao, Junwei2; Xu, Lei1; Yang, Rui1
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2022-01-30
卷号98页码:177-185
ISSN号1005-0302
关键词Titanium alloy Hot isostatic pressing Fatigue life Crack initiation type Porosity
DOI10.1016/j.jmst.2021.04.066
通讯作者Guo, Ruipeng(grp88620@163.com) ; Xu, Lei(lxu@imr.ac.cn)
英文摘要The present work reports the effect of thermal induced porosity (TIP) on the high-cycle fatigue (HCF) and very high-cycle fatigue (VHCF) behaviors of hot-isostatic-pressed (HIPed) Ti-6Al-4V alloy from gasatomized powder. The results show that the residual pores in the as-HIPed powder compacts present no obvious effect on the HCF life. The regrowth of the residual pores can be observed after solution heat treatment. The pore location ranks the most harmful for the fatigue life compared with the other initiating defects. The maximum stress intensity factors were calculated. The plastic zone size of fine granular area (FGA) is much less than the characteristic size of the microstructure, and the crucial size of the internal pores in this study is about 40 mu m. The failure types of fatigue specimens in the VHCF regime were classified, and the competition of different failure types was described based on the modified Poisson distribution. (c) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目Natural Science Foundation of Shanxi Province , China[201901D211085] ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者JOURNAL MATER SCI TECHNOL
WOS记录号WOS:000737283600009
资助机构Natural Science Foundation of Shanxi Province , China ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)
源URL[http://ir.imr.ac.cn/handle/321006/173778]  
专题金属研究所_中国科学院金属研究所
通讯作者Guo, Ruipeng; Xu, Lei
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Min,Lu, Zhengguan,Wu, Jie,et al. Effect of thermal induced porosity on high-cycle fatigue and very high-cycle fatigue behaviors of hot-isostatic-pressed Ti-6Al-4V powder components[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,98:177-185.
APA Cheng, Min.,Lu, Zhengguan.,Wu, Jie.,Guo, Ruipeng.,Qiao, Junwei.,...&Yang, Rui.(2022).Effect of thermal induced porosity on high-cycle fatigue and very high-cycle fatigue behaviors of hot-isostatic-pressed Ti-6Al-4V powder components.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,98,177-185.
MLA Cheng, Min,et al."Effect of thermal induced porosity on high-cycle fatigue and very high-cycle fatigue behaviors of hot-isostatic-pressed Ti-6Al-4V powder components".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 98(2022):177-185.

入库方式： OAI收割

来源：金属研究所

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