Effect of strain rate on microstructure evolution of a fine-grained gamma plus gamma' Ni-Co-base superalloy during superplasticity
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 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2023-09-01 |
| 卷号 | 203页码:13 |
| 关键词 | Ni-Co-base superalloy Superplasticity Microstructure evolution gamma'-phase Twin |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2023.113112 |
| 通讯作者 | Zhang, Rui(rzhang@imr.ac.cn) ; Cui, Chuanyong(chycui@imr.ac.cn) |
| 英文摘要 | The effect of strain rate on microstructure evolution of a Ni-Co-base superalloy during superplasticity was examined in this study. The experiments were conducted at 1050 degrees C with various strain rates. The strain rate had profound impacts on flow behavior and elongation that were connected to the characteristics of dynamic recrystallization (DRX). A comparatively high strain rate promoted the occurrence of DRX, and the elongation of >1335% prior to failure was obtained at 0.01/s. Scanning electron microscope (SEM), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM) measurements were used to investigate the deformed microstructures. A 0.01/s strain rate accelerated the recovery and dissolution within the primary gamma'-phase, resulting in a reduction in its volume fraction and size, which enhanced the DRX process of the gamma-matrix. The primary gamma'-phase partly retarded the DRX process of gamma-matrix grains, which was expedited by twin boundaries. Regardless of strain rate, discontinuous-DRX (DDRX) dominated the superplastic deformation. Meanwhile, continuous-DRX (CDRX) occurrence increased slightly at 0.1/s, which had a minor effect during the superplastic deformation of the Ni-Co-base superalloy. |
| 资助项目 | National Key R amp; D Program of China[2019YFA0705300] ; Natural Science Foundation Project of Liaoning Province[2023-MS-024] ; Youth Innovation Promotion Association, CAS[2023202] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001031381700001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Key R amp; D Program of China ; Natural Science Foundation Project of Liaoning Province ; Youth Innovation Promotion Association, CAS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178669]  |
| 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. Effect of strain rate on microstructure evolution of a fine-grained gamma plus gamma' Ni-Co-base superalloy during superplasticity[J]. MATERIALS CHARACTERIZATION,2023,203:13. |
| APA | Al-Hammadi, Rashad A.,Zhang, Rui,Cui, Chuanyong,Zhou, Zijian,&Zhou, Yizhou.(2023).Effect of strain rate on microstructure evolution of a fine-grained gamma plus gamma' Ni-Co-base superalloy during superplasticity.MATERIALS CHARACTERIZATION,203,13. |
| MLA | Al-Hammadi, Rashad A.,et al."Effect of strain rate on microstructure evolution of a fine-grained gamma plus gamma' Ni-Co-base superalloy during superplasticity".MATERIALS CHARACTERIZATION 203(2023):13. |
入库方式： OAI收割
来源：金属研究所
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