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Room temperature tensile behaviour of K640S Co-based superalloy
Hou, Guichen; Xie, Jun; Yu, Jinjiang; Sun, Xiaofeng; Zhou, Yizhou
Corresponding AuthorXie, Jun(junxie@imr.ac.cn)
2019-03-24
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume35Issue:5Pages:530-535
AbstractThe 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.
KeywordK640S cobalt-based alloy tensile behaviour at room temperature deformation mechanism fracture characteristics
Funding OrganizationNational Basic Research Program of China ; National Natural Science Foundation of China ; State Key Laboratory of Solidification Processing in NWPU
DOI10.1080/02670836.2019.1572298
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000460181000003
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/132369
Collection中国科学院金属研究所
Corresponding AuthorXie, Jun
AffiliationChinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
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.
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