Microstructures and wear properties of composite coatings produced by laser alloying of Ti-6Al-4V with graphite and silicon mixed powders

被引：46
作者：
Tian, YS
Chen, CZ [1 ]
Chen, LX
Huo, QH
机构：
[1] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China
[2] Shandong Elect Devices Co Ltd, Jinan 250061, Shandong, Peoples R China
来源：
MATERIALS LETTERS | 2006年 / 60卷 / 01期
关键词：
laser alloying; titanium alloy; carbides and silicides; wear resistance;
D O I：
10.1016/j.matlet.2005.07.082
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Composite coatings were fabricated by laser alloying of titanium alloy Ti-6Al-4V with graphite and silicon mixed powders. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis indicate that the coatings mainly consist of preeutectic TiC and eutectic Ti5Si3+beta(Ti). The test results show that the composite coatings, thickness of about 0.6 mm, surface microhardness of about 1500 HV0.1, have a lower friction coefficient and a much higher wear resistance than the as-received sample. (C) 2005 Elsevier B.V. All rights reserved.
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页码：109 / 113
页数：5
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