Phase Composition and Microstructure of Ti-Nb Alloy Produced by Selective Laser Melting

Yury Petrovich Sharkeev, A. Yu Eroshenko, Zhanna Gannadievna Kovalevskaya, Alexander Alexandrovich Saprykin, E. A. Ibragimov, I. A. Glukhov, M. A. Chimich, P. V. Uvarkin, E. V. Babakova

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Abstract

The phase composition and microstructure of Ti-Nb alloy produced from composite titanium and niobium powder by selective laser melting (SLM) was studied. Produced monolayered Ti-Nb alloy enhanced the formation of fine-grained and medium-grained zones with homogeneous element composition of 36-38% Nb mass interval. Alloy phase composition responded to β-alloy substrate phase (grain size was 5-7 pm) and non-equilibrium martensite α''- phase (grain size was 0.1-0.7 μm). α''-phase grains were found along β-phase grain boundaries and inside grains, including decreased niobium content. Alloy microhardness varied within 4200-5500 MPa.

Original languageEnglish
Article number012020
JournalIOP Conference Series: Materials Science and Engineering
Volume140
Issue number1
DOIs
Publication statusPublished - 8 Aug 2016

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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