| 2002 №10 (03) | 2002 №10 (05) |
The Paton Welding Journal, 2002, #10, 18-21 pages
Phase composition of Fe-C-Cr-AI system coatings produced by the method of electric arc metallizing
V.I. Pokhmursky1, M.M. Student1, I.I. Sidorak1, I.A. Ryabtsev2, Yu.M. Kuskov2
1G.V. Karpenko Physical-Mechanical Institute, NASU, Lviv, Ukraine2E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
Abstract
Phase composition and processes of structure formation in coatings produced by the method of electric arc metallizing have been investigated. It was established that structure of coatings of Fe-C-Cr-Al system consists of martensite, troostite and residual austenite with a different content of alloying elements. With increase in aluminium content by more than 2 % in the flux-cored wire charge the adhesion strength of coating with a base metal is increased, and an alloyed ferrite is simultaneously appeared in the coating structure.
Keywords: electric arc metallizing, coatings, phase composition of coatings, microstructure of coatings, flux-cored wires
References
1. Pokhmursky, V.I., Shirokov, V.V., Student, M.M. et al. (1997) Wear-resistant thermal coatings from flux-cored wires of Fe-Cr-C system. Problemy Trybologii, 3, 48-56.2. Student, M.M. (1998) Development of protective and restored electrometallised coatings using flux-cored wires. Syn. of Thesis for Cand. Techn. Sei. Degree. Lviv