Influences of precursor constitution and processing speed on microstructure and wear behavior during laser clad composite coatings on γ-TiAl intermetallic alloy

作者: Xiu-Bo Liu , Rong-Li Yu

DOI: 10.1016/J.MATDES.2008.04.066

关键词:

摘要: The effects of constitution precursor mixed powders and scan speed on microstructure wear properties were designed investigated during laser clad gamma/Cr7C3/TiC composite coatings gamma-TiAl intermetallic alloy substrates with NiCr-Cr3C2 powders. results indicate that both the beam rate have remarkable influence attendant hardness as well resistance formed coatings. mechanisms original TiAl investigated. coating an optimum compromise between being processed under moderate exhibits best dry sliding test conditions. (C) 2008 Elsevier Ltd. All rights reserved.

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