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

doi:10.1016/j.jmst.2021.04.066

IMR OpenIR

	Effect of thermal induced porosity on high-cycle fatigue and very high-cycle fatigue behaviors of hot-isostatic-pressed Ti-6Al-4V powder components
	Cheng, Min 1; Lu, Zhengguan 2; Wu, Jie 2; Guo, Ruipeng 1; Qiao, Junwei 1; Xu, Lei 2; Yang, Rui 2
通讯作者	Guo, Ruipeng(grp88620@163.com) ; Xu, Lei(lxu@imr.ac.cn)
	2022-01-30
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	98 页码:177-185
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.
关键词	Titanium alloy Hot isostatic pressing Fatigue life Crack initiation type Porosity
资助者	Natural Science Foundation of Shanxi Province , China ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)
DOI	10.1016/j.jmst.2021.04.066
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000737283600009
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173779
专题	中国科学院金属研究所
通讯作者	Guo, Ruipeng; Xu, Lei
作者单位	1.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, 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.