SURFACE PROPERTIES OF THE IN SITU FORMED CERAMICS REINFORCED COMPOSITE COATINGS ON TI-3AL-2V ALLOYS

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Peng Liu (liupeng_qlzs@163.com), Wei Guo, Dakui Hu, Hui Luo and Yuanbin Zhang
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Surface Review and Letters (SRL), 2012, vol. 19, issue 02, pages 1250009-1-1250009-5

Abstract: The synthesis of hard composite coating on titanium alloy by laser cladding of Al/Fe/Ni+C/Si3N4 pre-placed powders has been investigated in detail. SEM result indicated that a composite coating with metallurgical joint to the substrate was formed. XRD result indicated that the composite coating mainly consisted of γ-(Fe, Ni), FeAl, Ti3Al, TiC, TiNi, TiC0.3N0.7, Ti2N, SiC, Ti5Si3 and TiNi. Compared with Ti-3Al-2V substrate, an improvement of the micro-hardness and the wear resistance was observed for this composite coating.

Keywords: Surface properties; surface modification; wear; composites (search for similar items in EconPapers)
Date: 2012
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