Pulsed Nd:YAG laser post-treatment Ni-based crack-free coating on copper substrate and its wear properties

被引：26

作者：

Liu, Fang ^{[1
]}

Liu, Changsheng ^{[1
]}

Chen, Suiyuan ^{[1
]}

Tao, Xingqi ^{[1
]}

Xu, Zhifeng ^{[1
]}

Wang, Ming ^{[1
]}

机构：

[1] NE Univ, Sch Met & Mat, Shenyang 110004, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2007年 / 201卷 / 14期

基金：

中国国家自然科学基金;

关键词：

copper; pulsed Nd : YAG laser post-treatment; nickel-based alloy; wear resistance;

D O I：

10.1016/j.surfcoat.2006.11.038

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser post-treatment of Ni-Cu plasma-sprayed layer on copper substrate was conducted by pulsed Nd:YAG laser, and its sliding wear tests were investigated. Optical microscope (OM) and scanning electron microscope (SEM) observations showed that, after the laser post-treatment processing, the obtained Ni-Cu coating had dense and homogeneous structure, as well as metallurgical combination with copper substrate, without cracks found. High microhardness of 347 HV of Ni-Cu coating was obtained, which was almost 3.4 times of Cu substrate (102 HV). The volume loss of copper substrate was nearly 4 times of the laser post-treated sample, under sliding wear tests. With the laser post-treatment of large area crack-free Ni-Cu coating on copper substrate, the seizure tendency of Ni-Cu coating was much more suppressed, resulting in the improvement of wear properties. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：6332 / 6339

页数：8

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