High fatigue endurance limit of a Ti-based metallic glass

doi:10.1016/j.intermet.2020.106716

IMR OpenIR

	High fatigue endurance limit of a Ti-based metallic glass
	Wang, X. D.1; Liu, P.1; Zhu, Z. W.2; Zhang, H. F.2; Ren, X. C.1
通讯作者	Ren, X. C.(xcren@ustb.edu.cn)
	2020-04-01
发表期刊	INTERMETALLICS
ISSN	0966-9795
卷号	119 页码:7
摘要	In this work, we investigated the three-point bending fatigue behavior of a brittle Ti32.8Zr30.2Ni5.3Cu9Be22.7 MG (ZT3) combined with damage morphology observation using scanning electron microscope. It is found that the brittle ZT3 MG possesses the excellent fatigue resistance with the fatigue endurance limit of similar to 527 MPa based on stress amplitude, and the fatigue ratio of similar to 0.29 termed as fatigue endurance limit divided by ultimate tensile strength, respectively. The superior fatigue property of ZT3 MG is mainly clarified based on shear-banding mechanism. The embrittlement suppresses shear band formation before fatigue crack initiation, probably delaying the fatigue crack initiation; the profuse shear bands as well as the staircase-like crack path during fatigue crack propagation further increases the resistance to fatigue damage and fracture. Besides, the fatigue behavior of ZT3 MG shows a lessened sensitivity to the defect, as evidenced by the slightly decreased fatigue lives and the low scatter of fatigue data in stress-life (S-N) curve. The ZT3 MG with excellent fatigue performance as well as high specific strength is expected to be a prime candidate material for structural applications in future.
关键词	Metallic glass Fatigue endurance limit Shear band Fatigue crack
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
DOI	10.1016/j.intermet.2020.106716
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11932020] ; Fundamental Research Funds for the Central Universities[FRF-TP-19-011A1]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000518873700015
出版者	ELSEVIER SCI LTD
引用统计	被引频次：9[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/321006/137858
专题	中国科学院金属研究所
通讯作者	Ren, X. C.
作者单位	1.Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, X. D.,Liu, P.,Zhu, Z. W.,et al. High fatigue endurance limit of a Ti-based metallic glass[J]. INTERMETALLICS,2020,119:7.
APA	Wang, X. D.,Liu, P.,Zhu, Z. W.,Zhang, H. F.,&Ren, X. C..(2020).High fatigue endurance limit of a Ti-based metallic glass.INTERMETALLICS,119,7.
MLA	Wang, X. D.,et al."High fatigue endurance limit of a Ti-based metallic glass".INTERMETALLICS 119(2020):7.