中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting

文献类型:期刊论文

作者Qian GA(钱桂安)2,3; Jian ZM2,3; Pan XN(潘向南)2,3; Berto F1
刊名INTERNATIONAL JOURNAL OF FATIGUE
出版日期2020-04-01
卷号133页码:9
ISSN号0142-1123
关键词Selective laser melting In-situ SEM Ti-6Al-4V Low cycle fatigue Crack propagation
DOI10.1016/j.ijfatigue.2019.105424
通讯作者Qian, Guian(qianguian@imech.ac.cn)
英文摘要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.
分类号一类
WOS关键词HIGH-CYCLE FATIGUE ; PROPAGATION BEHAVIOR ; CRACK INITIATION ; LIFE PREDICTION ; CRITICAL PLANE ; MICROSTRUCTURE ; SPECIMENS ; ALLOY ; STEEL ; SLM
资助项目National Natural Science Foundation of China[11872364] ; National Natural Science Foundation of China[11932020] ; CAS Pioneer Hundred Talents Program
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000510947500024
资助机构National Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program
其他责任者Qian, Guian
源URL[http://dspace.imech.ac.cn/handle/311007/81538]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
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.

入库方式: OAI收割

来源:力学研究所

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