Особенности формирования сварного шва при имитации электронно-лучевой сварки толстостенных образцов ВТ6, полученных электронно-лучевой аддитивной

Abstract

This paper presents a comparative analysis of the geometry of weld zones of wrought and electron beam additive manufactured (EBAM) VT6 titanium alloy thick-walled samples. Bead-on-plate electron beam welding (EBW) was carried out by single-pass movement of the electron beam across the VT6 samples. The results of metallographic studies have demonstrated that the penetration of the EBAM VT6 samples during EBW was higher than that of the wrought VT6 samples under the same EBW conditions. The influence of the trajectory scans of the electron beam on the appearance of defects in the seams, consisted fine martensitic α/α` needles inside prior β columnar grains has been shown