Study on Friction and Wear Characteristics and Structure of Compound Layer from Combined Treatment of Ion Nitrocarburizing-Ion Sulphurizing of CrMoCu Alloy Cast Iron
来源期刊：材料热处理学报2004年第5期
论文作者：LI Xin HU Chun-hua QIU Ji Ma Shi-ning
关键词：ion nitrocarburizing; ion sulphurizing; combined treatment; friction and wear characteristics;
摘 要：The technics of combined treatment of ion nitrocarburizing-ion sulphurizing of CrMoCu alloy cast iron has been investigated and the compound layer with nitrocarbonide and sulphide has been made on the surface of CrMoCu alloy cast iron. The compound layer is composed of sulfide surface layer and the nitrocarbonide hypo-surface layer and its diffusing layer. The size of sulfide globular grains distributing equably on the surface is in nano-micron-scale, and the phase structure of the compound layer is composed of FeS、 FeS2、 Fe2C and Fe3N. Under dry sliding condition, the friction-reducing of sulphurized surface is good, but its function time can't last very long. The nitrocarbonided+sulphurized surface can greatly improve the wear-resistance and the friction-reducing of CrMoCu alloy cast iron, and its integrated friction and wear properties are better than plain and sulphurized surfaces'.
LI Xin1，HU Chun-hua1，QIU Ji1，Ma Shi-ning1
(1.Academy of Armored Force Engineering, Beijing, China)
摘要:The technics of combined treatment of ion nitrocarburizing-ion sulphurizing of CrMoCu alloy cast iron has been investigated and the compound layer with nitrocarbonide and sulphide has been made on the surface of CrMoCu alloy cast iron. The compound layer is composed of sulfide surface layer and the nitrocarbonide hypo-surface layer and its diffusing layer. The size of sulfide globular grains distributing equably on the surface is in nano-micron-scale, and the phase structure of the compound layer is composed of FeS、 FeS2、 Fe2C and Fe3N. Under dry sliding condition, the friction-reducing of sulphurized surface is good, but its function time can''t last very long. The nitrocarbonided+sulphurized surface can greatly improve the wear-resistance and the friction-reducing of CrMoCu alloy cast iron, and its integrated friction and wear properties are better than plain and sulphurized surfaces''.
关键词:ion nitrocarburizing; ion sulphurizing; combined treatment; friction and wear characteristics;
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