Room temperature tensile behaviour of K640S Co-based superalloy

doi:10.1080/02670836.2019.1572298

IMR OpenIR

	Room temperature tensile behaviour of K640S Co-based superalloy
	Hou, Guichen; Xie, Jun; Yu, Jinjiang; Sun, Xiaofeng; Zhou, Yizhou
通讯作者	Xie, Jun(junxie@imr.ac.cn)
	2019-03-24
发表期刊	MATERIALS SCIENCE AND TECHNOLOGY
ISSN	0267-0836
卷号	35 期号:5 页码:530-535
摘要	The room-temperature tensile properties of K640S cobalt-based superalloy were investigated by tensile tests and microstructure observation. The experimental results showed that the deformation mechanism of K640S alloy is dislocation slip; that the dislocation could be decomposed into continuous stacking faults with different orientations; and that with the increase of the number of dislocations, the dislocation tangle interacts with the decomposed stacking fault to increase the tensile strength of the alloy. As the stretching proceeded further, a plurality of slip systems were activated between different grains to coordinate the deformation, and the grains were gradually plastically deformed. The stress concentration occurred at the carbide interfaces, and microcracks were formed, causing mixed crystal fracture to the alloy.
关键词	K640S cobalt-based alloy tensile behaviour at room temperature deformation mechanism fracture characteristics
资助者	National Basic Research Program of China ; National Natural Science Foundation of China ; State Key Laboratory of Solidification Processing in NWPU
DOI	10.1080/02670836.2019.1572298
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2010CB631200] ; National Basic Research Program of China[2010CB631206] ; National Natural Science Foundation of China[51701212] ; National Natural Science Foundation of China[50931004] ; National Natural Science Foundation of China[51571196] ; National Natural Science Foundation of China[51771191] ; National Natural Science Foundation of China[51601192] ; National Natural Science Foundation of China[51671188] ; State Key Laboratory of Solidification Processing in NWPU[SKLSP201747]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000460181000003
出版者	TAYLOR & FRANCIS LTD
引用统计	被引频次：6[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/321006/132369
专题	中国科学院金属研究所
通讯作者	Xie, Jun
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Hou, Guichen,Xie, Jun,Yu, Jinjiang,et al. Room temperature tensile behaviour of K640S Co-based superalloy[J]. MATERIALS SCIENCE AND TECHNOLOGY,2019,35(5):530-535.
APA	Hou, Guichen,Xie, Jun,Yu, Jinjiang,Sun, Xiaofeng,&Zhou, Yizhou.(2019).Room temperature tensile behaviour of K640S Co-based superalloy.MATERIALS SCIENCE AND TECHNOLOGY,35(5),530-535.
MLA	Hou, Guichen,et al."Room temperature tensile behaviour of K640S Co-based superalloy".MATERIALS SCIENCE AND TECHNOLOGY 35.5(2019):530-535.