Features of the structural phase state of a weld produced by electron-beam welding in the submicrocrystalline grade 2 titanium alloy

Kirill Kurgan, Vasily Klimenov, Anatoly Klopotov, Sergey Gnyusov, Yuri Abzaev, Alexander Potekaev, Mikhail Marzol

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents the results of structural studies for a welded joint of the Grade 2 titanium alloy in submicrocrystalline and microcrystalline states produced by electron beam welding when joining 2-mm-thick plates. Microhardness distribution patterns of the Grade-2 titanium alloy in micro- and submicrocrystalline states are identified in the weld zone and heat-affected zone. These patterns reflect a difference in structural phase states. It is assumed that one of the key factors affecting both the structural state and microhardness distribution in the weld zone and heat-affected zone during electron-beam welding is high concentration of oxygen atoms embedded into the crystal lattice of α-Ti-based solid solution.

Original languageEnglish
Article number03011
JournalMATEC Web of Conferences
Volume143
DOIs
Publication statusPublished - 8 Jan 2018

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Engineering(all)

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