Investigation of the In Situ Ceramic Particles (TiCN, TiC) Composite Cladding on the Abrasive Wear Resistance of the Steel Substrate

In this research, metal cored wire including the ferroalloy materials was used and cladded by FCAW process with different shielding gases as nitrogen and argon on steel substrate. The chemical analysis examination showed that the absorbed nitrogen in all of the samples was fabricated with nitrogen gas shielding. Consequence of XRD pattern indicated that the carbonitride phase (TiCN) precipitations appeared in weld metal that fabricated with shielding of nitrogen gas and titanium carbides (TiC) precipitate in the sample that fabricated with argon shielding gas. Optical and SEM examination results, revealed that the fine particles of titanium carbonitrides and titanium carbides precipitations sited in grain of ferrite structure and the mapping of elements explained the homogeneously precipitates of elements and phases in microstructure. Also, the hardness of sample that fabricated with argon shielding gas was lower than the sample that fabricated with nitrogen shielding gas. The wear test (ASTM G65) result indicated that sample was being consist of TiCN had higher abrasive wear resistance than other sample.