Wear behavior of HVOF-sprayed Fe-based amorphous coatings

被引：164
作者：
Zhang, C. [1 ,2 ]
Liu, L. [1 ]
Chan, K. C. [2 ]
Chen, Q. [1 ,2 ]
Tang, C. Y. [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China
[2] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Hong Kong, Hong Kong, Peoples R China
来源：
INTERMETALLICS | 2012年 / 29卷
基金：
中国国家自然科学基金;
关键词：
Glasses metallic; Oxidation; Tribological properties; Coatings; Wear-resistant applications; BULK METALLIC-GLASS; CORROSION-RESISTANCE; ALLOYS; STEEL; MICROSTRUCTURE; OXIDATION; COMPOSITE; MECHANISM; FRICTION; SIZE;
D O I：
10.1016/j.intermet.2012.05.004
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The wear behavior of Fe48Cr15Mo14C15B6Y2 amorphous coatings prepared by high velocity oxygen fuel (HVOF) thermal spraying was studied under dry sliding conditions in a ball-on-plate mode using alumina ball as the counterpart. It was found that the friction coefficient and the wear rate of the coating are around 03-0.4, and (3-19) x 10(-5) mm(3) N-1 m(-1), respectively. Compared with traditional steels and other wear-resistant coatings, such as hard Cr and Al2O3 coatings, the Fe-based amorphous coating shows higher wear resistance. The wear rate is independent of the applied load, but increases linearly with the increase of sliding speed. The dominating wear mechanism of the Fe-based amorphous coating is by oxidative wear coupled with delamination wear, where the oxidation process is governed by inward diffusion of oxygen. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：80 / 85
页数：6
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