| Microstructural Stability and Softening Resistance of a Novel Hot-Work Die Steel | |
| Du, Ningyu1,2; Liu, Hongwei1; Fu, Paixian1; Liu, Hanghang1; Sun, Chen1,2; Cao, Yanfei1; Li, Dianzhong1 | |
| 通讯作者 | Liu, Hongwei(hwliu@imr.ac.cn) ; Fu, Paixian(pxfu@imr.ac.cn) ; Cao, Yanfei(yfcao10s@imr.ac.cn) |
| 2020-04-01 | |
| 发表期刊 | CRYSTALS
 |
| ISSN | 2073-4352 |
| 卷号 | 10期号:4页码:16 |
| 摘要 | A novel hot-work die steel, named 5Cr5Mo2, was designed to obtain superior thermal stability. The proposed alloy is evaluated in terms of its hardness, microstructure, and tempering kinetics. Compared with the commonly used H13 steel, the softening resistance of the designed steel is superior. Based on SEM and transmission electron microscopy (TEM) observations, a higher abundance of fine molybdenum carbides precipitate in 5Cr5Mo2 steel. Strikingly, the coarseness rate of the carbides is also relatively low during the tempering treatment. Moreover, owing to their pinning effect on dislocation slip, the dislocation density of the 5Cr5Mo2 steel decreases more slowly than that of the H13 steel. Furthermore, a mathematical softening model was successfully deduced and verified by analyzing the tempering kinetics. This model can be used to predict the hardness evolution of the die steels during the service period at high temperature. |
| 关键词 | hot-work die steel thermal stability carbide dislocation tempering kinetics |
| 资助者 | National Natural Science Foundation of China ; Innovation project of the cutting-edge basic research and key technology by SYNL ; Young Talent Project by SYNL ; China Postdoctoral Science Foundation ; Project to Strengthen Industrial Development at the Grass-roots Level |
| DOI | 10.3390/cryst10040238 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[51701225] ; Innovation project of the cutting-edge basic research and key technology by SYNL[L2019R36] ; Young Talent Project by SYNL[L2019F33] ; China Postdoctoral Science Foundation[2019M661153] ; Project to Strengthen Industrial Development at the Grass-roots Level[TC190A4DA/35] |
| WOS研究方向 | Crystallography ; Materials Science |
| WOS类目 | Crystallography ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000535596700002 |
| 出版者 | MDPI |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/138960 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Liu, Hongwei; Fu, Paixian; Cao, Yanfei |
| 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, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Ningyu,Liu, Hongwei,Fu, Paixian,et al. Microstructural Stability and Softening Resistance of a Novel Hot-Work Die Steel[J]. CRYSTALS,2020,10(4):16. |
| APA | Du, Ningyu.,Liu, Hongwei.,Fu, Paixian.,Liu, Hanghang.,Sun, Chen.,...&Li, Dianzhong.(2020).Microstructural Stability and Softening Resistance of a Novel Hot-Work Die Steel.CRYSTALS,10(4),16. |
| MLA | Du, Ningyu,et al."Microstructural Stability and Softening Resistance of a Novel Hot-Work Die Steel".CRYSTALS 10.4(2020):16. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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