Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15001
Title: An in-situ formed TiC particle reinforcement composite coating induced by laser cladding on aluminium alloy
Authors: Zhang, S
Kang, Y
Man, HC 
Wu, W
Wang, M
Keywords: Aluminum alloy
In-situ reacdion synthesis
Laser cladding
Metal matrix composite
Issue Date: 2001
Publisher: 中國學術期刊(光盤版)電子雜誌社
Source: 稀有金屬材料與工程 (Rare metal materials and engineering), 2001, v. 30, no. 6, p. 426-427 How to cite?
Journal: 稀有金屬材料與工程 (Rare metal materials and engineering) 
Abstract: Metal matrix composite (MMC) surface layer have been formed on 6061 aluminium alloy-surface by laser cladding of using a 2kW continuous wave (CW) Nd-YAG laser. The TiC particle reinforced Al-Ti composite coating was prepared by in-situ contact- reaction with preplaced powder mixtures of Ti and SiC. The formation mechanism of TiC particles has been studied. It was found that composite coating consisting of TiC particles dispersed in coating matrix could be obtained using the correct ratio of Ti to SiC powders and a laser-power density. Compound material cladding coating mainly consists of Ti-Al intermetallic compound and Al supersaturated solid solution. The coating was characterized by good metallurgical bonding between the coating and the substrate, good wettability between the reinforcement TiC and the coating matrix, and a fine-grain structure. The results show that the composite coating greatly enhances the surface hardness.
URI: http://hdl.handle.net/10397/15001
ISSN: 1002-185X
EISSN: 1875-5372
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