Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403


공학

한국표면공학회지 (36권2호 116-121)

Tribological Behaviors Against Counterpart Materials of Ti-Si-N Coating Layers Prepared by a Hybrid Coating System

하이브리드 코팅시스템에 의해 제조된 Ti-Si-N 코팅막의 상대재에 대한 마모거동 연구

박옥남;박종현;윤석영;권식철;김광호;

부산대학교 재료공학부;한국기계연구원 표면기술연구부;

Abstract

Ti-Si-N coating layers were deposited onto WC-Co substrates by a hybrid system of arc ion plating (AIP) and sputtering techniques. The tribological behaviors of Ti-Si-N coating layers with various Si contents were investigated by the dry sliding wear experiments, which were conducted at three different sliding speeds, 0.1, 0.3, 0.5 m/s, against the steel and alumina balls. In the case of steel ball, the average friction coefficient slightly decreased with increasing the sliding speed regardless of Si content due to adhesive wear behavior between coating layer and steel ball. At constant sliding speed, the average friction coefficient decreased with increase of Si content. On the contrary, in the case of alumina ball, the average friction coefficient increased with increasing the sliding speed regardless of Si content, indicating that the abrasive wear behavior was more dominant when the coating layers slide against alumina ball. Through these experimental results, it was found that the tribological behaviors of Ti-Si-N coating layers were effected by factors such as Si content, sliding speed, and kinds of counterpart materials rather than the hardness of coating layer.

Keywords

Hybrid coating system;Ti-Si-N;friction coefficient;Wear;