| 38CrMoAlA、40Cr钢经不同渗氮工艺处理后的性能研究 |
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| 引用本文： | 王吉会,房大然,张琨.38CrMoAlA、40Cr钢经不同渗氮工艺处理后的性能研究[J].金属热处理,2003,28(7):20-23. |
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| 作者姓名： | 王吉会 房大然 张琨 |
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| 作者单位： | 天津大学,材料学院,天津,300072 |
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| 基金项目： | 教育部留学回国人员资助基金项目 |
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| 摘 要： | 研究了38CrMoAlA和40Cr钢经气体渗氮、气体氮碳共渗、离子渗氮处理后渗氮层的组织、硬度、摩擦磨损和腐蚀性能。试验结果表明，38CrMoAlA钢渗氮层的硬度及在3．5％NaCl溶液中的耐蚀性能高于40Cr钢，但抗摩擦磨损性能不如40Cr钢。依气体渗氮、气体氮碳共渗到离子渗氮的顺序，渗氮层的抗磨损性能逐次提高，但抗腐蚀能力逐次降低。从钢的化学成分、渗氮层的硬度和韧性出发，对38CrMoAlA和40Cr钢渗氮层的性能差异进行了分析与总结。
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| 关 键 词： | 气体渗氮 气体氮碳共渗 离子渗氮 渗氮钢 |
| 文章编号： | 0254-6051(2003)07-0020-04 |
Properties of 38CrMoAlA and 40Cr Steels After Different Nitriding Processes |
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| WANG Ji hui,FANG Da ran,ZHANG Kun.Properties of 38CrMoAlA and 40Cr Steels After Different Nitriding Processes[J].Heat Treatment of Metals,2003,28(7):20-23. |
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| Authors: | WANG Ji hui FANG Da ran ZHANG Kun |
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| Abstract: | CrMoAlA and 40Cr steels were modified through gas nitriding,gas nitrocarburizing and plasma nitriding processes.The structure,friction,wear behaviors and corrosion resistance of nitrided layer were studied.The results show that nitrided layer of 38CrMoAlA steel has higher hardness and corrosion resistance than that of 40Cr steel,but has lower friction and wear resistance.With the order of gas nitriding,gas nitrocarburizing and plasma nitriding,the wear resistance of nitrided layer increased but the corrosion resistance decreased.The performance differences between 38CrMoAlA and 40Cr steels were analyzed from the composition of steel,hardness and toughness of nitrided layer. |
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| Keywords: | gas nitriding gas nitrocarburizing plasma nitriding nitrided steel |
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