Surface modification of Co-Cr-Mo implant alloy by laser interference lithography

被引：34
|
作者：
Wei, Xiaofeng [1 ]
Li, Wenjun [1 ,3 ]
Liang, Bojian [2 ]
Li, Binglin [1 ]
Zhang, Jinjin [1 ]
Zhang, Linshuai [1 ]
Wang, Zuobin [1 ,3 ]
机构：
[1] Changchun Univ Sci & Technol, Int Res Ctr Nano Handling & Mfg China, Changchun 130022, Peoples R China
[2] Jilin Univ, China Japan Union Hosp, Changchun 130033, Peoples R China
[3] Univ Bedfordshire, Joint Res Ctr Comp Controlled Nanomfg, Luton LU1 3JU, Beds, England
来源：
TRIBOLOGY INTERNATIONAL | 2016年 / 97卷
关键词：
Co-Cr-Mo implant alloy; Laser interference lithography; Friction; Hardness; HALL-PETCH RELATIONSHIP; WEAR; FRICTION; JOINTS;
D O I：
10.1016/j.triboint.2016.01.039
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This article studies the feasibility of using laser interference lithography (LIL) for surface modification of Co-Cr-Mo implant alloy which has been universally applied to joint materials in total joint replacements. The tribological performances and surface topography of the samples were studied by RTEC micro-friction and wear tester and scanning electron microscope (SEM). Hardness testing of the modified sample surfaces was carried out using the micro-hardness tester (MH-60). Experimental results indicate that the sample surface modified with laser interference lithography presents better tribological performances and hardness properties than those untreated materials, including a 64% friction coefficient reduction and 40% hardness enhancement, which is very promising to significantly reduce the mean revision rate of post primary total hip replacements in the future. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：212 / 217
页数：6
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