| 15—5PH不锈钢多元渗氮层的钝化处理 |
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| 引用本文： | 杜楠,李伟.15—5PH不锈钢多元渗氮层的钝化处理[J].国外金属热处理,2009(4):59-61. |
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| 作者姓名： | 杜楠 李伟 |
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| 作者单位： | 中国空空导弹研究院,河南洛阳471009 |
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| 摘 要： | 15-5PH马氏体不锈钢，经过多元渗氮形成α—Fe的饱和固溶体和氮化络合物，其表面硬度高达60HRC，耐磨性能大为提高，但耐腐蚀性不强。钝化处理就是通过化学过程在材料表面形成一层氧化膜，提高其耐环境腐蚀的能力。多元渗氮后15-5PH材料表面成分中的活性铬被氮化铬取代，给钝化处理带来困难。本文就15-5PH材料多元渗氮后钝化处理的工艺方法进行验证。
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| 关 键 词： | 15-5PH不锈钢 多元渗氮 钝化 氮化物 |
Passivating Treatment of Multiple Nitriding Layer for 15-SPH Stainless Steel |
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| DU Nan,LI Wei.Passivating Treatment of Multiple Nitriding Layer for 15-SPH Stainless Steel[J].Heat Treatment of Metals Abroad,2009(4):59-61. |
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| Authors: | DU Nan LI Wei |
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| Affiliation: | ( China Airborne Mis Sile Academy, Luoyang Henan 471009, China) |
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| Abstract: | Martensitic stainless steel 15-SPH has the surface hardness of up to 60 HRC and much higher wear resistance, but lower corrosion resistance after multi-nitriding and formation of α-Fe saturated solid solution and the nitride complex. Passivation is formation of oxide film on the surface of material through chemical processes in the layer, to improve its corrosion-resistant against environment. The active ingredient chromium is replaced by CrN in the surface layer of 15-SPH steel after multiple nitriding, and passivation treatment is difficult. In this paper, the passivation treatment process is verified after multiple nitriding for 15-SPH stainless steel. |
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| Keywords: | 15-5PH stainless steel muhi-nitriding passivating nitride |
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