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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
Cheng, Min1; Lu, Zhengguan2; Wu, Jie2; Guo, Ruipeng1; Qiao, Junwei1; Xu, Lei2; Yang, Rui2
Corresponding AuthorGuo, Ruipeng(grp88620@163.com) ; Xu, Lei(lxu@imr.ac.cn)
2022-01-30
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume98Pages:177-185
AbstractThe 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.
KeywordTitanium alloy Hot isostatic pressing Fatigue life Crack initiation type Porosity
Funding OrganizationNatural Science Foundation of Shanxi Province , China ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)
DOI10.1016/j.jmst.2021.04.066
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of Shanxi Province , China[201901D211085] ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000737283600009
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173779
Collection中国科学院金属研究所
Corresponding AuthorGuo, Ruipeng; Xu, Lei
Affiliation1.Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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.
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