Friction and wear behaviors of A1203-13 wt%TiO2 coatings

Abstract Nanostructured and conventional AlzO3- 13 wt%TiO2 coatings were manufactured by air plasma spray. Friction and wear behaviors of coatings were investigated at room and elevated temperatures using an SRV wear test machine. The nanostructured coating has ＂two regions＂ microstructure, while th...

Full description

Saved in:
Bibliographic Details
Published in:稀有金属：英文版 2013 (1), p.87-92
Main Author: Lin Lu Zhuang Ma Fu-Chi Wang Yan-Bo Liu
Format: Article
Language:English
Subjects:
二氧化钛涂层
微观结构
摩擦磨损行为
磨损试验机
空气等离子喷涂
纳米结构涂层
耐磨性
重量
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Nanostructured and conventional AlzO3- 13 wt%TiO2 coatings were manufactured by air plasma spray. Friction and wear behaviors of coatings were investigated at room and elevated temperatures using an SRV wear test machine. The nanostructured coating has ＂two regions＂ microstructure, while the conventional coating has typical layered microstructure with obvious interfaces among splats. The coefficient of friction decreases with rising of temperature because of the for- mation of tribo-layer at elevated temperatures. The wear resistance of the nanostructured coatings is higher than that of the conventional coating, and the wear threshold of applied load is 30 N for conventional coating and 40 N for nanostructure coating. The wear resistance difference is related to the ＂two regions＂ microstructure of nanostruc- ture coating, which could blunt or branch the cracks propagation. In our test ranges, the wear rates rising are more sensitive with the applied wear load rising than with the temperature rising.
ISSN:1001-0521
1867-7185