Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting

doi:10.1016/j.msea.2018.12.083

IMR OpenIR

	Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting
	Wang, L. Y.1,2; Zhou, Z. J.3; Li, C. P.3; Chen, G. F.3; Zhang, G. P.1
通讯作者	Zhang, G. P.(gpzhang@imr.ac.cn)
	2019-02-04
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	745 页码:31-38
摘要	Creep performance of selective laser melting (SLM) fabricated Inconel 718 is studied in comparison with that of as-forged and as-cast Inconel 718 via small punch creep test technique. The results show that the SLM-fabricated samples have a time to rupture approximately equal to that of the as-forged samples but much less than the ascast sample due to the difference in the microstructures introduced by these manufacture processes. Intergranular fracture occurred in all the samples. For the SLM-fabricated Inconel 718, cracks initiated from the brittle Laves phases at grain boundaries during the creep process and may speed up the creep and lead to the failure of the sample. "Track-track" melt pool boundaries as one of the important interfaces in SLM-fabricated material can lead to a change in the cracking direction.
关键词	Additive manufacturing Selective laser melting Small punch creep test Inconel 718 Laves phase
资助者	National Natural Science Foundation of China (NSFC)
DOI	10.1016/j.msea.2018.12.083
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)[51571199]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000457819400004
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：50[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/321006/131644
专题	中国科学院金属研究所
通讯作者	Zhang, G. P.
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Siemens Ltd, Corp Technol, Mat & Mfg Qualificat Grp, Beijing 100102, Peoples R China
推荐引用方式 GB/T 7714	Wang, L. Y.,Zhou, Z. J.,Li, C. P.,et al. Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,745:31-38.
APA	Wang, L. Y.,Zhou, Z. J.,Li, C. P.,Chen, G. F.,&Zhang, G. P..(2019).Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,745,31-38.
MLA	Wang, L. Y.,et al."Comparative investigation of small punch creep resistance of Inconel 718 fabricated by selective laser melting".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 745(2019):31-38.