Wear Characteristics of Ceramics Coating Materials with Plasma Spray

J. Ocean Eng. Technol. 1998;12(4):43-50.

Gui-Shik Kim;Maeng-Jong Oh;Gyung-Seok Park;Dong-Won Jung;

플라스마용사 세라믹 코팅재의 마멸특성

김귀식;오맹종;박경석;정동원;

제주대학교 기계공학과;

Keywords: ceramic coating, Plasma spray, Heat treatment, Frictin Environment, Specific wear rate

핵심용어: 세라믹 코팅, 플라스마용사, 열처리, 마찰환경, 비마멸율,

Abstract

"This paper is to investigate the wear behaviors of a thermal sprayed TiO₂ coating by a pin-on-disk type wear testing machine. The test specimens were to plasma sprayed TiO₂ coating on carbon st않I substrate (S45C) with Ni-4.5%Al alloy bond coating. And these were done heat treatment at 800℃ and 1000℃. Wear characteristics, which were friction force and friction coefficient, and wear rates, according to heat treatment temperature were conducted at the two kinds of load and wear environments at room temperature. The microhardness and wear of ceramic coating heat-treated were improved more than those of as-sprayed coating. The friction coefficient and wear amount of the heat-treated were remarkably decreased in the dry as well as the lubrication condition. Then, the anti-wear properties of the heat treatment at 1000℃ was better than that at 800℃. As increasing the load, the effect of the lubrication environment and heat treatment were decreased. "