Use of Non-Vacuum Electron Beam Cladding for Creating a Combined Joint of High-Carbon and Chromium-Nickel Steels

Materials obtained by non-vacuum electron beam cladding of powder mixtures containing chromium, nickel and titanium onto billets from steel e76 are investigated. The structure of the claddings is studied by optical metallography and scanning and transmission electron microscopy. The chemical composition and the microhardness of the deposited layers are determined. It is shown that steel e76 acquires flaw-free layers with maximum thickness 3.5 mm and a structure represented by austenite, titanium carbonitrides and a chromium- and iron-based intermetallic phase with variable composition. Martensite regions with a width of up to 40 mu m and a microhardness of up to 765 HV are detected near the interfaces. The conditions for cladding railroad frogs are determined.

Automated summary

This study investigates materials obtained by non-vacuum electron beam cladding of powder mixtures containing chromium, nickel, and titanium onto steel E76 billets. The structure, chemical composition, and microhardness of the deposited layers are determined. The results show flaw-free layers with complex structures and high hardness.