Selection of Optimal Process Parameters for Arc Metallization
Rakhadilov B. Buitkenov D. Apsezhanova A. Kakimzhanov D. Nabioldina A. Magazov N.
March 2025Multidisciplinary Digital Publishing Institute (MDPI)
Coatings
2025#15Issue 3
This paper studies the coatings deposited on a 65G steel substrate by electric arc metallization using a 30KhGSA wire. The properties of the coatings obtained at 30 V, 40 V and 45 V are discussed, including their microstructure, porosity, microhardness, coefficient of friction and corrosion resistance. The experiments showed that the coatings possess a layered structure formed by sequential deposition of metal microdroplets. It was found that the increase in voltage favors the decrease in porosity, increase in layer density, increase in microhardness and improvement in wear resistance and corrosion resistance. At maximum voltage (45 V), there are optimum performance characteristics, such as minimal porosity (1.36%), high microhardness (305 HV) and improved corrosion resistance. The main defects of the coatings, including pores and oxide inclusions, which are formed during the sputtering process and depend on the kinetic energy of the microdroplets, were identified. These defects affect the mechanical and protective properties of the coatings.
coating , corrosion , electric arc metallization , steel , steel cladding wire , structure
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PlasmaScience LLP, Ust-Kamenogorsk, 070010, Kazakhstan
Protective and Functional Coatings Scientific Center, Daulet Serikbayev East Kazakhstan Technical University, Ust-Kamenogorsk, 070010, Kazakhstan
Research Center “Surface Engineering and Tribology”, Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk, 070000, Kazakhstan
PlasmaScience LLP
Protective and Functional Coatings Scientific Center
Research Center “Surface Engineering and Tribology”
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