Enhanced high-temperature strength of austenitic steels by nanotwins and nanoprecipitates
文献类型：期刊论文
| 作者 | Liu, D. Y.1,2; Shen, Z. L.1,2; Ren, C. X.1,3; Li, Q.1; Tao, N. R.1 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2024-03-15 |
| 卷号 | 242页码:5 |
| 关键词 | nanotwins precipitation strength austenitic steels high temperature |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2023.115938 |
| 通讯作者 | Li, Q.(qli13s@imr.ac.cn) ; Tao, N. R.(nrtao@imr.ac.cn) |
| 英文摘要 | A bulk nanotwinned solutionized austenitic steel was prepared by plastic deformation, followed by partial recrystallization treatment. Subsequent aging treatment resulted in extensive precipitation of gamma-prime phase along twin boundaries. These nanoprecipitates are coherent with the austenite matrix on both sides, namely inheriting the twin boundary. The nanotwins constrained by these nanoprecipitates exhibit exceptional thermal stability and efficiently hinder dislocation movement at high temperatures. As a result, the sample exhibits a high yield strength of 780 MPa at 700 celcius. In comparison to the peak-aged coarse-grained sample, the strength at 700 celcius is increased by similar to 60 % in the sample containing similar to 49 vol.% nanotwins combined with second phase. This kind of combined strengthening from nanotwins and nanoprecipitates provides a new strategy to further strengthen materials at high temperatures. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001160589400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Q.; Tao, N. R. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Hong Kong Polytech Univ, Dept Ind & Syst Engn, Hung Hom, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, D. Y.,Shen, Z. L.,Ren, C. X.,et al. Enhanced high-temperature strength of austenitic steels by nanotwins and nanoprecipitates[J]. SCRIPTA MATERIALIA,2024,242:5. |
| APA | Liu, D. Y.,Shen, Z. L.,Ren, C. X.,Li, Q.,&Tao, N. R..(2024).Enhanced high-temperature strength of austenitic steels by nanotwins and nanoprecipitates.SCRIPTA MATERIALIA,242,5. |
| MLA | Liu, D. Y.,et al."Enhanced high-temperature strength of austenitic steels by nanotwins and nanoprecipitates".SCRIPTA MATERIALIA 242(2024):5. |
入库方式： OAI收割
来源：金属研究所
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