A novel rapidly solidified Ti 5 Si 3 /NiTi intermetallic composite coating was fabricated on substrate of a t itanium alloy BT9by laser cladding using the Ni-14Ti-6Si allo y powders.Microstructure of the coa ting was characterized by OM,SEM,XR D and EDS.Wear resistance of the coating was tested under dry sliding wear condition at room tempera ture.The results indicate that the l aser clad intermetallic composite coating has a homogeneous rapidly so lidified microstructure consistin g of Ti 5 Si 3 primary particles uniformly distributed in the NiTi matrix,and is metallurgically bonded to the titanium substrate.The laser clad inte rmetallic composite coating has hig h hardness and excellent wear re-sistance under dry sliding wear test condition.The excellent wear resis tance of the laser clad Ti 5 Si 3 /NiTi intermetallic composite coating is attributed to the high hardness and s trong atomic bonding of the reinforc ing Ti 5 Si 3 phase and to the strain-induced martensite transformation of the NiTi intermetallic matrix.