| Room temperature tensile behaviour of K640S Co-based superalloy | |
| Hou, Guichen; Xie, Jun; Yu, Jinjiang; Sun, Xiaofeng; Zhou, Yizhou | |
| Corresponding Author | Xie, Jun(junxie@imr.ac.cn) |
| 2019-03-24 | |
| Source Publication | MATERIALS SCIENCE AND TECHNOLOGY
 |
| ISSN | 0267-0836 |
| Volume | 35Issue:5Pages:530-535 |
| Abstract | 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. |
| Keyword | K640S cobalt-based alloy tensile behaviour at room temperature deformation mechanism fracture characteristics |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000460181000003 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132369 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Xie, Jun |
| Affiliation | Chinese 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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