Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (43권6호 278-282)

A Study on the Friction and Wear Characteristic of TiAlN and CrAlN Coating on the SKD61 Extrusion Mold Steel for 6xxx Aluminum Alloy

6xxx계 알루미늄합금의 압출 금형용 SKD61 강재에 증착된 TiAlN, CrAlN 박막의 마찰.마모에 대한 연구

김민석;고진현;김상호;
Kim, Min-Suck;Kho, Jin-Hyun;Kim, Sang-Ho;

한국기술교육대학교 신소재공학과;
Dept. of Materials Engineering, Korea University of Technology and Education;

DOI : 10.5695/JKISE.2010.43.6.278

Abstract

In this research, the friction and wear characteristic behaviors of coating materials of TiAlN and CrAlN were investigated. The wear test was conducted in air and un-lubricated state using the reciprocating friction wear tester. Temperature were 50 and $120^{circ}C$, and load were 3, 7, and 11 kgf for tests. By comparing the coefficient of friction and observing the wear microstructure, the friction and wear characteristic behaviors of TiAlN and CrAlN coating layers on SKD61 were investigated. The coefficient of friction of CrAlN coating was lower than that of TiAlN at all conditions. Therefore, CrAlN was suggested to be more advantageous coating than TiAlN for the extrusion mold of aluminum.

Keywords

TiAlN;CrAlN;Coefficient of friction;SKD61;