Wear behavior of plasma-sprayed partially stabilized zirconia on a steel substrate

被引：10

作者：

Ahn, H.S. ^{[1
]}

Kwon, O.K. ^{[1
]}

机构：

[1] Korea Inst of Science and Technology, Seoul, Korea, Republic of

来源：

Wear | 1993年 / 162-64卷 / pt A期

关键词：

Friction - Microscopic examination - Plasma spraying - Protective coatings - Scanning electron microscopy - Steel - Substrates - Tribology - Wear of materials - Wear resistance;

D O I：

10.1016/0043-1648(93)90556-2

中图分类号：

学科分类号：

摘要：

In this experimental investigation, various layers of partially stabilized zirconia (PSZ) coated on steel by plasma spraying were studied to gain a better understanding of the tribological behaviour of PSZ under the conditions of dry contact in a reciprocating motion at a temperature of 200 °C, which represents the severe operating conditions of friction pairs, such as cylinder liner-piston ring. The parameters investigated in relation to the wear behaviour were the thickness of the coating, oscillating frequency, sliding cycle and applied load. To identify the wear mechanism, X-ray diffraction, scanning electron microscopy and optical microscopy were used. In comparison with a steel-steel pair, PSZ coating-steel and PSZ coating-PSZ coating pairs exhibit far better wear characteristics and, therefore, the distinct possibility of applying a plasma-sprayed PSZ coating as a cylinder liner has been confirmed. The oscillating frequency and applied load conversely affect the wear rate of disc. The recommended coating thickness was found to be in the range 180-300 μm to ensure good anti-wear behaviour without the expense of high coating cost.

引用

页码：636 / 644