Laser surface engineered TiC coating on 6061 Al alloy: microstructure and wear

被引：107

作者：

Katipelli, LR ^{[1
]}

Agarwal, A ^{[1
]}

Dahotre, NB ^{[1
]}

机构：

[1] Univ Tennessee, Inst Space, Ctr Lass Applicat, Dept Mat Sci & Engn, Tullahoma, TN 37388 USA

来源：

APPLIED SURFACE SCIENCE | 2000年 / 153卷 / 2-3期

关键词：

laser surface engineering; TiC particles; wear; coating; bonding; interface;

D O I：

10.1016/S0169-4332(99)00368-2

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：

Hard and refractory TiC has been deposited on 6061 Al alloy by Laser Surface Engineering (LSE). A "composite" coating is obtained with TiC particles of various shapes and sizes embedded in Al alloy-Ti matrix. The coating is uniform, continuous and free of cracks. The various reactions occurring during laser processing were thermodynamically analyzed and related to the experimental observations. Microhardness measurements suggested high hardness values in the coating region and a strong bonding at the coating/substrate interface. Dry sliding wear tests were performed to measure the wear resistance and the coefficient of friction of the coating. Wear resistance of the coated surface was found to be high when compared to the substrate side. The coefficient of friction was found to be 0.64. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：65 / 78

页数：14

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