| 2006 №07 (04) | 2006 №07 (06) |
The Paton Welding Journal, 2006, #7, 26-30 pages
Influence of electric arc metallizing modes and compositions of applied flux-cored wires on structure and abrasive wear resistance of coatings
V.I. Pokhmursky1, M.M. Student1, I.A. Ryabtsev2, I.I. Sidorak1, Yu.V. Dzioba1, V.M. Dovgunyk1, B. Formanek3
1Physical-Mechanical Institute, NASU, Lvov, Ukraine2E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
3Polytechnica Shlenska, Glivice, Poland
Abstract
Studied is the influence of electric arc metallizing modes using flux-cored wire FMI-2 on the microstructure and abrasive wear resistance of the coatings. It is shown that among the many factors the compressed air pressure, current and spraying distance have the greatest influence on these characteristics. Wear resistance of coatings, deposited using flux-cored wire with the charge based on ferrocbromium-boron, is higher than that of hardened steel. The highest wear resistance is found in coatings deposited at a high pressure of compressed air, which are characterized by finely dispersed structure and containing a large amount of the oxide phase on the interphases
Keywords: electric arc metallizing, flux-cored wire, microstructure, abrasive wear
References
1. Dallaraire, S. (2000) Hard arc-sprayed coating with enhan¬ced erosion and abrasion wear resistance. In: Proc, of ITSC’2000 (Montreal, Canada, May 8-11, 2000). ASM Int.2. Pokhmursky, V.I., Student, M.M., Dovgunyk, V.M. et al. (2002) Flux-cored wires of FeCrB + Al and FeCr + Al + C systems for electric arc metallizing. The Paton Welding J., 3, 28-31.
3. Pokhmurska, A., Dovhunyk, V., Student, M. et al. (2002) Tribological properties of arc sprayed coatings obtained from FeCrB and FeCr based powder wires. Surface & Coating Technol., 151 /152, 490-494.