Microstructure and Properties of In Situ Synthesized Composite Coating by Tungsten Inert Gas Cladding
Ceramic particulate-reinforced Ni-based composite coatings are commonly used in the industry for protection against wear. With an aim to investigate the properties of this coating, ceramic coating reinforced by in-situ synthesized (Ti,Cr,Nb,Mo)xCy particles was prepared on AISI 1045 steel substrate by tungsten insert gas cladding. The microstructure and microhardness of the coatings were analyzed by scanning electron microscopy (SEM) and microhardness tester. The results showed that excellent bonding between the coating and the AISI 1045 steel substrate was uniform, continuous and almost defect-free. The maximum hardness value achieved 1013HV, which is about 5 times compared to that of the AISI 1045 steel substrate.
L. P. Zhao et al., "Microstructure and Properties of In Situ Synthesized Composite Coating by Tungsten Inert Gas Cladding", Advanced Materials Research, Vols. 314-316, pp. 296-299, 2011