Creep deformation behavior of the Ni-Fe-based GH984G alloy
文献类型：期刊论文
| 作者 | Wu, Yunsheng1,3; Zhang, Xiangxiang1,2; Wang, Changshuai1,3; Qin, Xuezhi1,3; Hou, Jieshan1,3; Zhou, Lanzhang1,3 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2022-09-27 |
| 卷号 | 854页码:9 |
| 关键词 | GH984G alloy Creep Microstructure evolution Creep damage Deformation mechanism map |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2022.143819 |
| 通讯作者 | Zhou, Lanzhang(lzz@imr.ac.cn) |
| 英文摘要 | The creep deformation behavior and microstructure evolution of the Ni-Fe-based GH984G alloy were investigated at temperatures of 700 ?-775 ?, with the stress ranging from 150 MPa to 400 MPa. The results demonstrate that the apparent stress exponent and apparent creep activation energy are 6.53 & PLUSMN; 0.74 and 546.7 & PLUSMN; 6.8 kJ/mol, respectively. The creep activation energy is higher than that of lattice self-diffusion, which is related to the interaction between dislocation and gamma & PRIME; precipitates and can be corrected by threshold stress. The threshold stresses are 109.1 MPa, 51.5 MPa and 24.8 MPa at 700 ?, 750 ? and 775 ?, respectively. The true stress exponent is 4.95 & PLUSMN; 0.14 and the true creep activation energy is determined to be 288.3 & PLUSMN; 4.3 kJ/mol. The microstructure analysis demonstrates that the climbing of a/2 < 110 > perfect dislocation is the primary mechanism of creep at 700 ?. The dislocation climbing and a/6 < 112 > partial dislocation shearing into gamma & PRIME; are both significant factors during creep deformation at 750 ?. The creep damage tolerance of 6.4 & PLUSMN; 1.1 indicates that microstructural degradation, including gamma & PRIME; and M23C6 coarsening, is the primary creep damage mechanism for the GH984G alloy. The deformation mechanism map for GH984G alloy is established and the creep mechanism within the investigated conditions locates in the power-law creep domain controlled by dislocation climbing. |
| 资助项目 | National Natural Science Foundation of China[51971216] ; China Postdoctoral Science Foundation[2020M681000] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000856601700002 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175418]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou, Lanzhang |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yunsheng,Zhang, Xiangxiang,Wang, Changshuai,et al. Creep deformation behavior of the Ni-Fe-based GH984G alloy[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,854:9. |
| APA | Wu, Yunsheng,Zhang, Xiangxiang,Wang, Changshuai,Qin, Xuezhi,Hou, Jieshan,&Zhou, Lanzhang.(2022).Creep deformation behavior of the Ni-Fe-based GH984G alloy.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,854,9. |
| MLA | Wu, Yunsheng,et al."Creep deformation behavior of the Ni-Fe-based GH984G alloy".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 854(2022):9. |
入库方式： OAI收割
来源：金属研究所
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