Microstructure and properties of in-situ synthesized ceramic phase reinforced Fe-based coating by laser cladding

Laser cladding include Ti-Fe,B4C Fe-based alloy coating was fabricated on the surface of Cr12MoV automotive mold steel by using 6 kW fiber laser, in-situ synthesized TiC+TiB₂ ceramic phase reinforced Fe-based coating on the surface of Cr12MoV automotive mold steel. The gains are refined. Phases were presented in the coating evolved into TiB₂, TiC and α-Fe. Dese and defect-free coating with metallurgical joint to the substrate was obtained. Cladding layer 1.2 mm from the surface of the highest microhardness is up to 1000 HV.