Portevin-Le Chatelier effect in a wrought Ni-Co based superalloy
文献类型：期刊论文
| 作者 | Zhang, Rui; Tian, Chenggang; Cui, Chuanyong; Zhou, Yizhou; Sun, Xiaofeng |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-03-25 |
| 卷号 | 818页码:8 |
| 关键词 | PLC effect Ni-Co based superalloy Deformation condition Microtwin |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2019.152863 |
| 通讯作者 | Cui, Chuanyong(chycui@imr.ac.cn) |
| 英文摘要 | For investigating the Portevin-Le Chatelier (PLC) effect in a wrought Ni-Co based superalloy with low stacking fault energy, the tensile tests of Ni-30%Co based superalloy within the temperature range of 350-550 degrees C and strain rate range of 3 x 10(-5) -3 x 10(-3) s(-1) were carried out. The microstructures were observed by optical microscope (OM) and transmission electron microscope (TEM). The serrated flow of stress-strain curves exhibited various characteristics based on the deformation conditions. The serrations transformed from type-A to type-C with increasing temperature or decreasing strain rate. The normal and inverse PLC effects were analyzed based on unpinning and pinning of mobile dislocations. The microstructural evolution shown that the deformation mechanisms were dislocation slip and stacking fault. Additionally, the tests of sample with large high-density stacking faults revealed that the amplitude of stress drop was determined by strength of the solute and microtwin obstacles. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[5167189] ; National Natural Science Foundation of China[51271174] ; Ministry of Science and Technology of China[2017YFA0700703] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000506166900103 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Ministry of Science and Technology of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/136373]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cui, Chuanyong |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Rui,Tian, Chenggang,Cui, Chuanyong,et al. Portevin-Le Chatelier effect in a wrought Ni-Co based superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,818:8. |
| APA | Zhang, Rui,Tian, Chenggang,Cui, Chuanyong,Zhou, Yizhou,&Sun, Xiaofeng.(2020).Portevin-Le Chatelier effect in a wrought Ni-Co based superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,818,8. |
| MLA | Zhang, Rui,et al."Portevin-Le Chatelier effect in a wrought Ni-Co based superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 818(2020):8. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。