| 70Mn2Mo铸钢热轧辊的激光表面强化 |
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| 引用本文： | 许巧玉,于青,李铸刚,刘湘. 70Mn2Mo铸钢热轧辊的激光表面强化[J]. 金属热处理, 2002, 27(8): 32-34 |
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| 作者姓名： | 许巧玉 于青 李铸刚 刘湘 |
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| 作者单位： | 新疆大学机械工程学院,乌鲁木齐,830008 |
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| 摘 要： | 用激光表面强化技术对70Mn2Mo铸钢热轧辊进行了硬化处理得到细化的马氏体组织，硬度由原始组织的200-300HV提高到920HV，硬化层深度达0.6mm，高温回火后，硬度及淬硬层仍分别保持在430HV和0.4mm以上，表明其具有良好的抗回火性能。
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| 关 键 词： | 70Mn2Mo铸钢 热轧辊 激光表面强化 |
| 文章编号： | 0254-6051(2002)08-0032-03 |
Surface Hardening of 70Mn2Mo Cast Steel Hot Roller by Laser |
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| XU Qiao-yu,YU Qing,LI Zhu gang,LIU Xiang. Surface Hardening of 70Mn2Mo Cast Steel Hot Roller by Laser[J]. Heat Treatment of Metals, 2002, 27(8): 32-34 |
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| Authors: | XU Qiao-yu YU Qing LI Zhu gang LIU Xiang |
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| Abstract: | The fine martensite could be gained in 70Mn2Mo cast steel roller by laser strengthening.The microhardness and hardened depth of the roll can reach 920HV and 0 6mm respectively.After tempering at high temperature,the hardness and the hardened depth can be maintained above 430HV and 0 4mm respectively.It is showed that the laser treated rollers possess good tempering resistance. |
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| Keywords: | cast steel hot roller laser strengthening |
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