Wear behavior of plasma nitrided AISI 420 stainless steel

被引：20

作者：

Bruehl, Sonia P. ^{[1
]}

Charadia, Raul ^{[1
]}

Sanchez, Carlos ^{[2
]}

Staia, Mariana H. ^{[2
]}

机构：

[1] Univ Tecnol Nacl, Fac Reg Concepcion Uruguay, Surface Engn Grp, Concepcion Del Uruguay, Argentina

[2] Cent Univ Venezuela, Fac Ingn, CENMACOR, Caracas, Venezuela

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2008年 / 99卷 / 07期

关键词：

plasma nitriding; adhesive wear; martensitic stainless steel; ball-on-disk;

D O I：

10.3139/146.101692

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Martensitic AISI420 stainless steel was plasma nitrided using a DC N2-Hz pulsed discharge, after thermal treatment at two different tempering temperatures. Sliding wear behavior was determined by means of a ball-on-disk tribometer at room temperature and without lubrication. Wear volume was calculated from the information provided by an optical profilometer and wear scars were analyzed by Scanning Electron Microscopy. The results indicated that the nitrided samples exhibited improved wear resistance when compared to the untreated specimens, but corrosion resistance was diminished due to the presence of the outer nitrided layer. However, when this layer was removed mechanically considerable improvement in the corrosion resistance was achieved without impairing the wear resistance of the whole system, which was 200 % higher compared to the wear resistance of the non-nitrided specimens.

引用

页码：779 / 786

页数：8

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