Effect of Through Cage on Active Screen Plasma Nitriding Properties

被引：27

作者：

Nishimoto, Akio ^{[1
]}

Tokuda, Atsushi ^{[1
]}

Akamatsu, Katsuya ^{[1
]}

机构：

[1] Kansai Univ, Dept Chem & Mat Engn, Fac Chem Mat & Bioengn, Suita, Osaka 5648680, Japan

来源：

MATERIALS TRANSACTIONS | 2009年 / 50卷 / 05期

关键词：

active screen plasma nitriding; DC plasma nitriding; through cage; edging effect; steel; surface engineering; CATHODIC CAGE; SURFACE MODIFICATION; BEHAVIOR; STEEL; CORROSION; LAYER; TC;

D O I：

10.2320/matertrans.MRA2008431

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Low carbon steel S15CK was nitrided by active screen plasma nitriding (ASPN) using various stainless steel cages to investigate the effect of the cage on the nitriding properties. Three types of austenitic stainless steel cages, such as pipe, foil, and wire mesh, were used. The sample was treated for 18 ks at 773 K under 630 Pa in 50% N-2 + 50% H-2 gases. The nitrided samples were characterized by surface roughness tests. optical microscopy, scanning electron microscopy, X-ray diffraction, and microhardness testing. In all samples nitrided by the ASPN process, the 'edging effect' was completely eliminated whereas hardness and thickness of the surface layer were comparable with those obtained front the DC plasma nitriding. Moreover, a comparison of the screens used in the ASPN process revealed that the screen hole size had a slight influence on surface properties such as microstructure and hardness. [doi: 10.2320/matertrans.MRA2008431]

引用

页码：1169 / 1173

页数：5

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