In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting

doi:10.1016/j.ijfatigue.2019.105424

IMECH-IR > 非线性力学国家重点实验室

	In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting
	Qian GA(钱桂安)1,2 ; Jian ZM1,2 ; Pan XN(潘向南)1,2; Berto F 3
通讯作者	Qian, Guian(qianguian@imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
	2020-04-01
卷号	133 页码:9
ISSN	0142-1123
摘要	In-situ fatigue tests were conducted for exploring the fatigue crack propagation process for Ti-6Al-4V manufactured by selective laser melting (SLM). Fatigue specimens were prepared with two printing orientations by SLM and characterized by scanning electron microscopy (SEM). In-situ fatigue experiments were carried out at 25 degrees C, 200 degrees C, 400 degrees C and 600 degrees C, respectively. Results show that vertically printed specimens have more and larger defects than horizontally printed ones. The fatigue property of horizontally printed specimens is better than that of vertically printed specimens. The anisotropy caused by printing orientation is the reason for the difference in fatigue property. Crack propagation rate increases with temperature. A large number of secondary cracks occurred during the crack propagation at elevated temperature. The branching of secondary cracks releases the energy at the crack tip, and thus slows down the crack growth.
关键词	Selective laser melting In-situ SEM Ti-6Al-4V Low cycle fatigue Crack propagation
DOI	10.1016/j.ijfatigue.2019.105424
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000510947500024
关键词[WOS]	HIGH-CYCLE FATIGUE ; PROPAGATION BEHAVIOR ; CRACK INITIATION ; LIFE PREDICTION ; CRITICAL PLANE ; MICROSTRUCTURE ; SPECIMENS ; ALLOY ; STEEL ; SLM
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
资助项目	National Natural Science Foundation of China[11872364] ; National Natural Science Foundation of China[11932020] ; CAS Pioneer Hundred Talents Program
项目资助者	National Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program
论文分区	一类
力学所作者排名	1
RpAuthor	Qian, Guian
引用统计	被引频次：57[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/81539
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway
推荐引用方式 GB/T 7714	Qian GA,Jian ZM,Pan XN,et al. In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,133:9.
APA	钱桂安,Jian ZM,潘向南,&Berto F.(2020).In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting.INTERNATIONAL JOURNAL OF FATIGUE,133,9.
MLA	钱桂安,et al."In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting".INTERNATIONAL JOURNAL OF FATIGUE 133(2020):9.

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