Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C

doi:10.1016/j.ijfatigue.2020.105654

IMR OpenIR

	Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C
	Wan, H. Y.1,3; Luo, Y. W.2; Zhang, B.2; Song, Z. M.1; Wang, L. Y.1,3; Zhou, Z. J.4; Li, C. P.4; Chen, G. F.4; Zhang, G. P.1
通讯作者	Zhang, B.(zhangb@atm.neu.edu.cn) ; Zhang, G. P.(gpzhang@imr.ac.cn)
	2020-08-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	137 页码:13
摘要	Effects of the surface roughness and the build thickness on fatigue properties of selective laser melted Inconel 718 were investigated at 650 degrees C. The result indicated that fatigue strength was enhanced by similar to 50% after surface machining and polishing. The thinner un-machined specimens exhibit a longer fatigue lifetime than the thicker ones, while the opposite trend appears in the machined specimens. Finite element simulations reveal that the defect shape has more evident influence on fatigue properties than the defect depth when it is less than 200 mu m. Safety thresholds of the stress concentration factor and the defect depth are 2 and 50 mu m, respectively.
关键词	Selective laser melting Inconel 718 High-temperature fatigue Build thickness Surface roughness
资助者	National Natural Science Foundation of China (NSFC) ; project of 'Manufacturing the swirl nozzles of the high pressure turbine by selective laser Melting' ; Fundamental research project of Shenyang National Laboratory for Materials Science
DOI	10.1016/j.ijfatigue.2020.105654
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[51771207] ; National Natural Science Foundation of China (NSFC)[51971060] ; project of 'Manufacturing the swirl nozzles of the high pressure turbine by selective laser Melting' ; Fundamental research project of Shenyang National Laboratory for Materials Science[L2019R18]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000534570200011
出版者	ELSEVIER SCI LTD
引用统计	被引频次：59[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/321006/138935
专题	中国科学院金属研究所
通讯作者	Zhang, B.; Zhang, G. P.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Siemens Ltd, Corp Technol, Mat & Mfg Qualificat Grp, Beijing 100102, Peoples R China
推荐引用方式 GB/T 7714	Wan, H. Y.,Luo, Y. W.,Zhang, B.,et al. Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,137:13.
APA	Wan, H. Y..,Luo, Y. W..,Zhang, B..,Song, Z. M..,Wang, L. Y..,...&Zhang, G. P..(2020).Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C.INTERNATIONAL JOURNAL OF FATIGUE,137,13.
MLA	Wan, H. Y.,et al."Effects of surface roughness and build thickness on fatigue properties of selective laser melted Inconel 718 at 650 degrees C".INTERNATIONAL JOURNAL OF FATIGUE 137(2020):13.