Grain size effect on precipitation behavior of nanostructured Inconel 718
文献类型：期刊论文
| 作者 | Tang, Y. G.1,2; Zhang, B. B.1; Gan, B.3; Li, X. Y.1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2024-12-10 |
| 卷号 | 202页码:55-66 |
| 关键词 | Inconel 718 Precipitation Grain size effect Nanograins |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2024.03.022 |
| 通讯作者 | Zhang, B. B.(bbzhang@imr.ac.cn) ; Li, X. Y.(xyli@imr.ac.cn) |
| 英文摘要 | To provide insight into the effect of grain size on the precipitation behavior of gamma '' strengthening superalloy Inconel 718, a gradient nanostructure with a large grain size span (from 9 nm to tens of microns) along the depth direction was achieved by mean of surface mechanical grinding treatment, followed by annealing upon 700-1000 degrees C for 1 h. The results reveal significant differences in the type and size of precipitates in samples with different grain sizes. No gamma '' precipitate was detected inside the grains as the grain size was refined down to 40 nm (NG-40) and 9 nm (NG-9). For delta phase, a significantly accelerated precipitation along grain boundary was observed in NG-40 upon 700 degrees C annealing. Interestingly, with the grain size drops to 9 nm, the precipitation of delta was suppressed, with some nanosized MC carbides appearing upon annealing. The grain size effect of precipitation behavior endows NG-9 an ultra-high RThardness (5.2 GPa) after 1000 degrees C thermal exposure and an ultra-high hot-hardness (3.2 GPa) at 800 degrees C. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | Chinese Academy of Sciences[XDB0510400] ; National Natural Science Foundation of China[52225102] ; Youth Innovation Promotion Association CAS[2023201] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001239147900001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, B. B.; Li, X. Y. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Cent Iron & Steel Res Inst, Beijing Key Lab Adv High Temp Mat, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Y. G.,Zhang, B. B.,Gan, B.,et al. Grain size effect on precipitation behavior of nanostructured Inconel 718[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,202:55-66. |
| APA | Tang, Y. G.,Zhang, B. B.,Gan, B.,&Li, X. Y..(2024).Grain size effect on precipitation behavior of nanostructured Inconel 718.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,202,55-66. |
| MLA | Tang, Y. G.,et al."Grain size effect on precipitation behavior of nanostructured Inconel 718".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 202(2024):55-66. |
入库方式： OAI收割
来源：金属研究所
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