New insights into the mechanism of low-temperature active-screen plasma nitriding of austenitic stainless steel

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• 作者：S. Corujeira Gallo^a ; ^{santiago.corujeiragallo@csiro.au} ; H. Dong^b
• 关键词：Austenitic stainless steel ; Surface modification ; Surface structure ; Nitrides ; EBSD
• 刊名：Scripta Materialia
• 出版年：2012
• 期刊代码：157_13596462
• 类别：et
• 出版时间：July, 2012
• 卷：67
• 期：1
• 页码：89-91
• 文件大小：592 K

摘要

Low-temperature active-screen plasma nitriding is an effective surface engineering technology to improve the wear and corrosion resistance of austenitic stainless steel through the formation of expanded austenite. The material sputtered from the active screen and redeposited on the specimens has been suggested to play an important role in the nitriding mechanism involved. This paper reports a patterned deposition layer, which is in correlation with the grain orientation of polycrystalline specimens. This has provided new insights into the nitriding mechanism.