Tailoring Microstructures of Metals
文献类型：期刊论文
| 作者 | Li Dianzhong; Wang Pei |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2023-04-11 |
| 卷号 | 59期号:4页码:447-456 |
| 关键词 | metal tailoring microstructure microstructure service performance evaluation |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2022.00555 |
| 通讯作者 | Li Dianzhong(dzli@imr.ac.cn) |
| 英文摘要 | In the light of the property requirements to design microstructures will become an important develop direction of metal materials. Here, a new concept of microstructure tailoring is proposed. The main features of microstructure tailoring include designing mesoscale microstructure, establishing quantitative relation between microstructures and properties, accurately inverse-designing and fabricating microstructures to satisfy the property requirements. It means screening, multi-scale calculation, and quantification of the essential microstructural factors should be performed first. Second, the microstructures are purposefully fabricated after adjusting the thermodynamics and kinetics of phase transformation. Third, the microstructures are assessed and tailored through iterative optimization. Microstructure tailoring must be preceded by purification and homogenization of metals. Only when the purity problem of materials is solved first, the influence of inclusions and impurity elements can be eliminated. Only by eliminating the macro-segregation can the material achieve homogeneity. And then the intrinsic properties of the material be fully reflected. As an example of microstructure tailoring, this study investigates the expected fatiguelife requirements of M50 (G80Cr4Mo4V) steels used for bearings in aircraft engines. By controlling the macro-segregation and purification, it is found that the fatigue-life of M50 steel mainly depends on primary carbides. And then the size, type, and morphology of the primary carbides are quantitatively tailored to fulfill the fatigue-life requirement. With technological developments in the metallurgy industry, microstructure tailoring will become a mainstay of the development of metals. And, applying data science and modeling along with microstructure tailoring technology, the alloy design will be gradually optimized in the future. The expensive metal addition will be reduced gradually, so as to save resources and develop green materials. |
| 资助项目 | National Natural Science Foundation of China[52031013] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000980757300002 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/177791]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li Dianzhong |
| 作者单位 | Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Dianzhong,Wang Pei. Tailoring Microstructures of Metals[J]. ACTA METALLURGICA SINICA,2023,59(4):447-456. |
| APA | Li Dianzhong,&Wang Pei.(2023).Tailoring Microstructures of Metals.ACTA METALLURGICA SINICA,59(4),447-456. |
| MLA | Li Dianzhong,et al."Tailoring Microstructures of Metals".ACTA METALLURGICA SINICA 59.4(2023):447-456. |
入库方式： OAI收割
来源：金属研究所
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