| Ti对铬钼钒模具钢奥氏体化组织与性能的影响 |
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| 引用本文： | 孙健,孙潭,居殿春,季凯,戚添益.Ti对铬钼钒模具钢奥氏体化组织与性能的影响[J].钢铁研究学报,2019,31(1):40-48. |
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| 作者姓名： | 孙健 孙潭 居殿春 季凯 戚添益 |
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| 作者单位： | 江苏科技大学冶金与材料工程学院,江苏 苏州,215600;江苏科技大学冶金与材料工程学院,江苏 苏州,215600;江苏科技大学冶金与材料工程学院,江苏 苏州,215600;江苏科技大学冶金与材料工程学院,江苏 苏州,215600;江苏科技大学冶金与材料工程学院,江苏 苏州,215600 |
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| 基金项目： | 国家重点研发计划;江苏省自然科学基金青年项目 |
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| 摘 要： |
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| 关 键 词： | 固溶度积 全固溶温度 冲击韧性 马氏体 未溶相 |
Effect of titanium on microstructure and properties of Cr- Mo- V die steel after austenitizing |
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| SUN Jian,SUN Tan,JU Dian- chun,JI Kai,QI Tian- yi.Effect of titanium on microstructure and properties of Cr- Mo- V die steel after austenitizing[J].Journal of Iron and Steel Research,2019,31(1):40-48. |
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| Authors: | SUN Jian SUN Tan JU Dian- chun JI Kai QI Tian- yi |
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| Affiliation: | School of Metallurgy and Materials Engineering, Jiangsu University of Science and Technology, Suzhou 215600, Jiangsu, China |
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| Abstract: | ??The microstructure and properties of die steels with Ti and without Ti at different austenitizing temperatures were studied through the combination of thermodynamic calculation and experiment. The results show that the total solution temperature of Cr23C6, Cr7C3, VC, V2C, V8C7, MoC, Mo2C and TiC is 748. 2, 952. 7, 977. 3, 632. 9, 1116. 0, 1131. 2, 645. 3 and 1044. 1??, respectively. Hardness and impact toughness both increase with the increase in temperature. When the austenitizing temperature is above 1200 ??, it has a greater influence on the hardness. Toughness of die steel with Ti is better than that without Ti. The grain becomes coarse and the amount of martensite increases with the increase of temperature. The average grain size of the die steel with Ti is 21. 4??m smaller than that without Ti, and the size of the undissolved phase of the former is about 0. 2??m smaller than that of the latter. |
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| Keywords: | Solid solution product Full solution temperature Impact toughness Martensite Insoluble phase |
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