Effects of temperature on superplastic and fracture behaviors of a Ni-Co-based superalloy
文献类型：期刊论文
| 作者 | Al-Hammadi, Rashad A.1,2; Zhang, Rui2; Cui, Chuanyong2; Zhou, Zijian2; Zhou, Yizhou2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2023-10-05 |
| 卷号 | 958页码:13 |
| 关键词 | Ni-Co-based superalloy Superplastic behavior Deformation mechanism Failure mechanism |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2023.170524 |
| 通讯作者 | Zhang, Rui(rzhang@imr.ac.cn) ; Cui, Chuanyong(chycui@imr.ac.cn) |
| 英文摘要 | The effects of deformation temperatures on the superplastic behavior, microstructure evolution, and failure mechanisms of Ni-Co-based superalloy were analyzed at temperatures ranging from 900 to 1140 degrees C. The superplastic-tensile temperatures have significant effects on flow behavior, which shows distinctive fea-tures of dynamic recrystallization (DRX). The alloy exhibits a striking increase in elongation with increasing the superplastic-tensile temperature to 1100 degrees C, reaching 1760 %. The deformed microstructure was char-acterized using SEM, EBSD, and TEM. As the superplastic-tensile temperatures increased, the DRX-grain fraction increased. The superplastic deformation of the alloy is primarily governed by discontinuous-DRX (DDRX) mechanism. Continuous-DRX (CDRX) had a significant effect at 900 degrees C and occurs as an assistant mechanism during superplastic deformation of the alloy at elevated temperatures. The fracture at 900 degrees C was initiated by a combination of intergranular and micro-void coalescences, while the pure intergranular fracture takes place above 1050 degrees C. Meanwhile, the micro-void coalescence has only a minor effect on the fracture behavior at 1140 degrees C.(c) 2023 Elsevier B.V. All rights reserved. |
| 资助项目 | National Key R&D Program of China[2019YFA0705300] ; IMR Innovation Fund[2021-PY09] ; National Science and Technology Major Project of China[2019 -VI -0006-0120] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001006128700001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Key R&D Program of China ; IMR Innovation Fund ; National Science and Technology Major Project of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178252]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Rui; Cui, Chuanyong |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Al-Hammadi, Rashad A.,Zhang, Rui,Cui, Chuanyong,et al. Effects of temperature on superplastic and fracture behaviors of a Ni-Co-based superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,958:13. |
| APA | Al-Hammadi, Rashad A.,Zhang, Rui,Cui, Chuanyong,Zhou, Zijian,&Zhou, Yizhou.(2023).Effects of temperature on superplastic and fracture behaviors of a Ni-Co-based superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,958,13. |
| MLA | Al-Hammadi, Rashad A.,et al."Effects of temperature on superplastic and fracture behaviors of a Ni-Co-based superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 958(2023):13. |
入库方式： OAI收割
来源：金属研究所
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