| 循环等离子渗氮工艺对38CrMoAl钢渗氮层组织和性能的影响 |
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| 引用本文： | 陈玮,王蕾,付勇涛,严翔.循环等离子渗氮工艺对38CrMoAl钢渗氮层组织和性能的影响[J].特殊钢,2009,30(6):55-57. |
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| 作者姓名： | 陈玮 王蕾 付勇涛 严翔 |
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| 作者单位： | 1武汉钢铁(集团)公司研究院，武汉430080； 2中冶京诚有限责任公司，北京10000； 3武汉科技大学，武汉430081 |
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| 摘 要： | 试验了38CrMoAl钢(%:0.35～0.42C、1.35～1.65Cr、0.15～0.25Mo、0.70～1.10Al)280 Pa 560℃,12 h常规渗氮和170 Pa 560℃3 h快冷至室温循环等离子渗氮对渗氮层组织、硬度、硬度梯度和耐磨性的影响。结果表明,循环等离子体渗氮工艺有利于表层ε相分解,更有利于氮渗入钢中γ′相;在获得相同的渗层表面硬度和硬度梯度下,循环等离子渗氮速度明显高于常规渗氮速度,并改善渗氮后钢的耐磨性。
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| 关 键 词： | 38CrMoAl钢 循环等离子渗氮 硬度 耐磨性 |
| 收稿时间： | 2009-05-22 |
Effect of Cycle Plasma Nitriding Process on Structure and Properties of Nitrided Layer of Steel 38 CrMoAl |
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| Chen Wei,Wang Lei,Fu Yongtao,Yan Xiang.Effect of Cycle Plasma Nitriding Process on Structure and Properties of Nitrided Layer of Steel 38 CrMoAl[J].Special Steel,2009,30(6):55-57. |
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| Authors: | Chen Wei Wang Lei Fu Yongtao Yan Xiang |
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| Affiliation: | 1 Research Institute, Wuhan Iron and Steel ( Group) Co, Wuhan 430080；
2 Zhongye
Jingcheng Co Ltd, Beijing 100000 ;
3 Wuhan University of Science and Technology, Wuhan 430081 |
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| Abstract: | Effects of normal nitriding process with 280 Pa at 560 ℃ for 12 h and cycling plasma nil rich: g process with 170 Pa at 560 °C for 3 h then quick cooling to ambient temperature on structure, hardness, gradient of hardness, and wear resistance of nitride layer of steel 38CrMoAl ( % ： 0. 35 - 0. 42C, 1. 35 ~ 1.65 Cr, 0. 15 - 0. 25 Mo, 0. 70 - 1. 10 Al) have been tested. Results show that the cycling plasma nitriding process is available to decompose ε phase at surface layer, led to favorable nitriding of γ′ phase in steel: in the condition of getting same surface hardness of nitrided layer and gradient of hardness, the nitriding rate by cycle plasma nitriding process is obvious high than that by normal nitriding process, and the wear resistance of nitrided steel is improved. |
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| Keywords: | Steel 38CrMoAl Cycle Plasma Nitriding Hardness Wear Resistance |
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