| 冷轧工作辊用半高速钢的二次硬化效应 |
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| 引用本文： | 尹钟大,刘德富,徐德祥,孙学乐,李朝华.冷轧工作辊用半高速钢的二次硬化效应[J].钢铁,2006,41(2):72-75. |
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| 作者姓名： | 尹钟大 刘德富 徐德祥 孙学乐 李朝华 |
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| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院,黑龙江,哈尔滨,150001
2. 北满特殊钢集团有限责任公司,黑龙江,齐齐哈尔,161041 |
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| 摘 要： | 为开发冷轧工作辊用半高速钢,设计了新钢种的化学成分,研究了试验钢淬火后在回火过程中二次硬化效应及其影响因素,并初步探讨了试验钢的二次硬化机理.研究结果表明,新型半高速钢有显著的二次硬化效应,能满足冷轧工作辊的硬度要求;随Mo、V和Si等合金元素含量升高钢的二次硬度升高,随淬火温度升高钢的二次硬度出现两次峰值.二次硬化效应与残余奥氏体在回火过程中转变为马氏体和马氏体基体中析出细小弥散的Mo2C和VC有关.
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| 关 键 词： | 冷轧工作辊 半高速钢 二次硬化 合金元素 残余奥氏体 |
| 文章编号： | 0449-749X（2006）02-0072-04 |
| 收稿时间： | 2005-06-15 |
| 修稿时间： | 2005-06-15 |
Secondary Hardening of Semi High Speed Steel for Cold Work Rolls |
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| YIN Zhong-da,LIU De-fu,XU De-xiang,SUN Xue-le,LI Zhao-hua.Secondary Hardening of Semi High Speed Steel for Cold Work Rolls[J].Iron & Steel,2006,41(2):72-75. |
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| Authors: | YIN Zhong-da LIU De-fu XU De-xiang SUN Xue-le LI Zhao-hua |
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| Affiliation: | 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, HeilonKiiang, China; 2. Beiman Special Steel Limited Liability Company, Qiqihar 161041 ,Heilongjiang , China |
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| Abstract: | In order to prolong the service life of work rolls for cold rolling, new semi-high speed steels have been designed, and the secondary hardening during tempering and its effecting factors have been studied. The secondary hardening mechanism has been discussed. The results show that these semi-high speed steels can be hardened remarkably by secondary hardening to meet the hardness requirements of cold rolling. The secondary hardness of the tested steels is increased with the contents of alloying elements such as Mo, V, Si and changed with quenching temperature to show two peaks. Secondary hardening is related to the transformation of the residual austenite into martensite and the precipitation of the fine and dispersed Mo2 C and VC. |
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| Keywords: | work roll for cold rolling semi high speed steel secondary hardening alloying element residual austenite |
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