The Effect of the Dilution Level on Microstructure and Wear Resistance of Fe-Cr-CV Hardfacing Coatings Deposited by PTA-P

Soil preparation tools are subject to severe abrasion. The wear resistance of various industrial components can be improved using the hardfacing technique. improvement in depends on microstructure, i.e., chemical composition alloys, method overlay, and parameters selected process. Plasma Transferred Arc with Powder (PTA-P) welding process is interesting as a technique since it promotes very low dilution substrate coating. In this article, PTA-P was used for deposition Fe-Cr-C-based hard coatings addition vanadium onto cheap relatively soft low-carbon steel substrates. Rubber-wheel abrasion tests were performed compare between commercial anti-wear weld-deposited Fe-Cr-C-V coatings. addition, dilution, mechanisms investigated. affected particular, free mean path carbides, but only when mechanism involved rolling deposited proved at least three times stronger than abrasion-resistant due distribution morphology carbides formed