Room temperature tensile behaviour of K640S Co-based superalloy

doi:10.1080/02670836.2019.1572298

CORC > 金属研究所 > 中国科学院金属研究所

	Room temperature tensile behaviour of K640S Co-based superalloy
	Hou, Guichen; Xie, Jun; Yu, Jinjiang; Sun, Xiaofeng; Zhou, Yizhou
刊名	MATERIALS SCIENCE AND TECHNOLOGY
	2019-03-24
卷号	35 期号:5 页码:530-535
关键词	K640S cobalt-based alloy tensile behaviour at room temperature deformation mechanism fracture characteristics
ISSN号	0267-0836
DOI	10.1080/02670836.2019.1572298
通讯作者	Xie, Jun(junxie@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000460181000003
资助机构	National Basic Research Program of China ; National Natural Science Foundation of China ; State Key Laboratory of Solidification Processing in NWPU
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132366]
专题	金属研究所_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.