Effect of low temperature plasma hardening treatment on microstructure and properties of AISI 420 stainless steelChinese Full Text
Du Wei;Zhao Cheng;College of Electroinechanical Engineering,Qingdao University of Science and Technology;
Abstract: Effect of low temperature plasma nitriding,nitrocarburizing and carburizing on microstructure,surface hardness,corrosion resistance and wear resistance of AISI 420 martensitic stainless steel was investigated. The results show that plasma nitriding,nitrocarburizing and carburizing process can increase the surface hardness. There is no significantly decrease to the corrosion resistance on the surface of Stainless steel treated by different treatment processes except of plasma nitriding at 500 ℃ for 4 h. If the nitriding temperature is higher than 500 ℃,the corrosion resistance will significantly decline due to the precipitation of CrN. The wear results show that hardened layer of plasma carburizing sample has the best wear resistance.
Keywords：
AISI 420 stainless steel; plasma nitriding; plasma nitrocarburizing; plasma carburizing; microhardness; corrosion resistance; wear resistance;
- DOI：
10.13251/j.issn.0254-6051.2014.07.028
- Series：
- Subject：
- Classification Code：
TG156.82;TG142.71
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