The Increase in Wear Resistance of Low Carbon Steel by Flux-Cored Wire Surfacing Followed Be Electron Beam Processing

[摘要] Structure-phase state and tribological properties of the coating deposited on Hardox 450 martensitic low-carbon steel by flux-cored wire Fe-C-Cr-Nb-W and modified by subsequent electron-beam processing were studied. It is shown that the electron beam processing of ∼ 5 mm thick deposited layer leads to the formation of ∼ 20 μ m thick modified surface layer with the main phases of α-Fe and NbC, Fe3C and M6C(Fe3W3C) carbides. Wear resistance of the weld layer is 70 times higher than the one of the original steel.

[发布机构] Institute of High-Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk; 634021, Russia^1;Tomsk National Research State University, Tomsk; 634050, Russia^2;Siberian State Industrial University, Novokuznetsk; 654007, Russia^3

[效力级别] 机械制造

[关键词] Deposited layer;Electron beam processing;Flux-cored wire;Modified surfaces;Phase state;Tribological properties