Wear behavior of AISI D2 steel by enhanced ion nitriding with atomic attrition. (July 2015)

• Record Type: Journal Article
• Authors: Cho, Kyun Taek; Lee, Young-Kook; Lee, Won Beom
• Is Part Of: Tribology international. Volume 87(2015)
• Page Start: 82
• Page End: 90
• Publication Date: 2015-07
• Subjects: Plasma nitriding -- Ion bombardment -- Oxide layer -- Enhanced surface hardness; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2015.02.020
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: An experimental study was performed to investigate the effect of atomic attrition on wear behavior of AISI D2 steel. Wear tests were conducted under three different loads (5, 10, and 20 N) and sliding speeds (100, 200, and 500 rpm), using ball-on-disk type tester and SiC ball. After wear test, the specimen nitrided with ion bombardment showed superior wear behavior. The enhanced hardness by ion bombardment could have a beneficial effect on increased wear resistance. In addition, a wider and more adhesive oxide layer formed on the worn surface of ion-bombarded specimen, because of the rougher structure on the surface by ion bombardment, could lead the surface to withstand wear for longer duration time, acting as a protective layer. Highlights: Wear behavior of AISI D2 steel ion-nitrided with atomic attrition was investigated. Ion-nitrided AISI D2 steel with atomic attrition showed superior wear behavior. Higher hardness induced by atomic attrition is beneficial to wear behavior. Rougher surface by atomic attrition formed thicker and wider oxide layer on surface. Thicker and wider oxide layer on the surface is beneficial in lowering wear rate.