| QPQ技术对5CrNiMo热锻模具钢组织及性能的影响 |
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| 引用本文： | 周泽杰,邱英,熊光耀.QPQ技术对5CrNiMo热锻模具钢组织及性能的影响[J].模具工业,2007,33(4):64-67. |
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| 作者姓名： | 周泽杰 邱英 熊光耀 |
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| 作者单位： | 华东交通大学,机电工程学院,江西,南昌,330013 |
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| 摘 要： | 运用QPQ盐浴复合处理技术对5CrNiMo热锻模具钢进行表面改性处理,分析了盐浴渗氮对模具钢的渗氮层深度、显微硬度、耐磨性和抗腐蚀性的影响及渗氮层显微组织特征。实验结果表明,5CrNiMo热锻模具钢经QPQ盐浴技术处理后,表面硬度、耐磨性和抗腐蚀性较渗氮前有较大的提高,且渗氮时间以2~3 h效果最好。
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| 关 键 词： | 5CrNiMo热锻模具钢 QPQ 渗氮 表面改性 |
| 文章编号： | 1001-2168(2007)04-0064-04 |
| 修稿时间： | 10 9 2006 12:00AM |
Effect of QPQ technology on microstructure and performance of hot forging die steel 5CrNiMo |
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| ZHOU Ze-jie,QIU Ying,XIONG Guang-yao.Effect of QPQ technology on microstructure and performance of hot forging die steel 5CrNiMo[J].Die & Mould Industry,2007,33(4):64-67. |
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| Authors: | ZHOU Ze-jie QIU Ying XIONG Guang-yao |
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| Abstract: | The QPQ salt bath composite processing technology was applied to the surface modification of hot forging die steel 5CrNiMo. An analysis was made on the influence of salt bath nitriding on the steel performance, such as the depth of nitrided layer, microhardness, wear resistance and corrosion resistance. In addition, the characteristic of nitrided layer microstructure was investigated. The experimental result shows that the surface hardness, wear resistance and corrosion resistance of the steel after Ireatment can be increased to a relatively great extent. The optimal nitridng time is around 2-3 hours. |
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| Keywords: | hot forging die steel 5CrNiMo quench polish quench(QPQ) nitriding surface modification |
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