Applied Surface Science, Vol.220, No.1-4, 186-192, 2003
Microstructure and high-temperature wear resistance of a laser surface alloyed gamma-TiAl with carbon
TiC reinforced composite coating on gamma-TiAl alloy was successfully fabricated by laser surface alloying with carbon. The fine TiC reinforcing phase had a gradient distribution in the coating, and its growth morphology of TiC in laser surface alloyed coating was in unique faceted platelet-like. The composite coating exhibited high hardness and excellent high-temperature sliding wear resistance. (C) 2003 Elsevier B.V. All rights reserved.