Laser surface modification of Al-4Cu-1Mg alloy for enhanced thermal conductivity

被引：6

作者：

Balla, Vamsi Krishna ^{[1
]}

Bose, Susmita ^{[1
]}

Bandyopadhyay, Amit ^{[1
]}

机构：

[1] Washington State Univ, WM Keck Biomed Mat Res Lab, Sch Mech & Mat Engn, Pullman, WA 99164 USA

来源：

OPTICS AND LASERS IN ENGINEERING | 2009年 / 47卷 / 06期

基金：

美国国家科学基金会;

关键词：

Thermal conductivity; Laser processing; Surface modification; Aluminum alloy; Laser engineered net shaping (LENS); COMPOSITES;

D O I：

10.1016/j.optlaseng.2009.01.007

中图分类号：

O43 [光学];

学科分类号：

070207 [光学];

摘要：

The feasibility of enhancing thermal conductivity of Al-4Cu-1Mg alloy by depositing 80Cu-20Mo coating using high-power lasers has been examined. Coatings of 667 +/- 2.5 pm thickness were formed with metallurgically sound interface. Results showed an 86% increase in the thermal conductivity of Al-4Cu-1Mg alloy due to laser-deposited 80Cu-20Mo alloy coating. This coating approach can potentially be used on low coefficient of thermal expansion metal matrix composites to enhance their thermal conductivity in electronic devices. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：651 / 655

页数：5

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