| Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature | |
| Liu, Liu1,2; Meng, Jie1; Liu, Jinlai1; Zou, Mingke1; Zhang, Haifeng3; Sun, Xudong2; Zhou, Yizhou1 | |
| Corresponding Author | Meng, Jie(JMeng@imr.ac.cn) |
| 2019-09-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 35Issue:9Pages:1917-1924 |
| Abstract | Low-cycle fatigue behaviors of Ni-base single crystal superalloys containing different Re contents have been investigated at 760 degrees C. During heat treatment, Re retards gamma' phases coarsening and equalizes the distribution of gamma' phases. As Re content increases, fatigue life increases and slip bands distribute more inhomogeneously. Moreover, adding Re not only reduces stacking fault energy of the matrix, but also promotes the element segregation to increase the lattice misfit. However, the larger lattice misfit does not lead to the formation of dislocation networks, but which activates dislocation movement and promotes dislocations cross-slip and climbing movement under high temperature and applied stress. On the other hand, with the addition of Re, cyclic deformation behaviors change from cyclic hardening to cyclic stability, mainly depending on a transformation of deformation mechanisms from slip bands cutting through gamma and gamma phases to stacking faults shearing. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Single crystal superalloys Low-cycle fatigue Deformation behaviors Deformation mechanisms |
| Funding Organization | National Natural Science Foundation of China ; Shenyang Science and Technology Project |
| DOI | 10.1016/j.jmst.2019.05.026 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[51571196] ; National Natural Science Foundation of China[51601192] ; Shenyang Science and Technology Project[17-101-2-00] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000475870600013 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/134614 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Meng, Jie |
| Affiliation | 1.Chinese Acad Sci, Superalloys Div, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Liu,Meng, Jie,Liu, Jinlai,et al. Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(9):1917-1924. |
| APA | Liu, Liu.,Meng, Jie.,Liu, Jinlai.,Zou, Mingke.,Zhang, Haifeng.,...&Zhou, Yizhou.(2019).Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(9),1917-1924. |
| MLA | Liu, Liu,et al."Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.9(2019):1917-1924. |
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