Synergistic strengthening mechanisms of rhenium in nickel-based single crystal superalloys
文献类型：期刊论文
| 作者 | Yue En-Lai4; Yu Tao4; Wang YJ(王云江)2,3 ; Wang Chong-Yu1,4
|
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 132页码:7 |
| ISSN号 | 0966-9795 |
| 关键词 | A Intermetallics B Plastic deformation mechanisms B Solid-solution hardening D Dislocation geometry and arrangement E Molecular dynamics simulation |
| DOI | 10.1016/j.intermet.2021.107133 |
| 通讯作者 | Yu, Tao(ytao012345@163.com) ; Wang, Yun-Jiang(yjwang@imech.ac.cn) ; Wang, Chong-Yu(cywang@mail.tsinghua.edu.cn) |
| 英文摘要 | A loading-unloading-reloading strategy via atomistic simulations is proposed to reveal the strengthening mechanisms of rhenium in nickel-based superalloys at ambient temperature. Simulations reproduce the experimentally observed increased flow stress with addition of rhenium. Besides the usual solid solution strengthening, two novel mechanisms are uncovered. One is that rhenium facilitates the dislocation nucleation and, thus, increases the propensity of forest dislocation interactions. The other involves a critical role of rhenium in promoting accumulation of sessile stair-rod dislocations, served as obstacles for the glissile dislocations. The three mechanisms synergistically render a stronger alloy, which is heuristic to design advanced superalloys in extreme environments. |
| 分类号 | 二类/Q1 |
| 资助项目 | National Key Research and Development Program of China[2017YFB0701502] ; National Key Research and Development Program of China[2017YFB0701503] ; NSFC[11672299] ; NSFC[12072344] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017025] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000634564300001 |
| 资助机构 | National Key Research and Development Program of China ; NSFC ; Youth Innovation Promotion Association of Chinese Academy of Sciences |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/86353]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Dept Phys, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China; 4.Cent Iron & Steel Res Inst, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yue En-Lai,Yu Tao,Wang YJ,et al. Synergistic strengthening mechanisms of rhenium in nickel-based single crystal superalloys[J]. INTERMETALLICS,2021,132:7. |
| APA | Yue En-Lai,Yu Tao,王云江,&Wang Chong-Yu.(2021).Synergistic strengthening mechanisms of rhenium in nickel-based single crystal superalloys.INTERMETALLICS,132,7. |
| MLA | Yue En-Lai,et al."Synergistic strengthening mechanisms of rhenium in nickel-based single crystal superalloys".INTERMETALLICS 132(2021):7. |
入库方式： OAI收割
来源：力学研究所
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