DOI QR코드

DOI QR Code

Sliding Wear Behavior of $Al_2O_3/NiCr$ Coating

$Al_2O_3/NiCr$ 코팅의 미끄럼 마멸 특성

  • 채영훈 (경북대학교 대학원 기계공학과) ;
  • 박병희 (경북대학교 대학원 기계공학과) ;
  • 김석삼 (경북대학교 기계공학부)
  • Published : 1999.07.01

Abstract

The sliding wear behavior of $Al_2O_3/NiCr$ coating deposited on steel(SM45C) was investigated under lubrication. The parameters of sliding wear are normal loads, coating thickness. As a result, the wear resistance of $Al_2O_3/NiCr$ coating was remarkably greater than that of $Al_2O_3$ coating. The optimized coating thickness was found to be $300{\mu}m$ to ensure good anti-wear. The bond coating played important role in decreasing residual stress. The residual stress had much influence on wear mechanism. These results were correlated with the stress state of coating and the microstructure of coating.

Keywords

Plasma Spray;Alumina Coating;Bond Coating;Wear;Friction