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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Druckformat: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.2017024814
pages 161-183

SELECTIVE LASER MELTING OF the Ti–(40–50) wt.% Nb ALLOY

Yu. P. Sharkeev
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia; National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russia
A. I. Dmitriev
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia; National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russia
Anna G. Knyazeva
Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russia; Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634021, Russia
A. Yu. Eroshenko
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia
A. A. Saprykin
National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russia
M. A. Khimich
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia; National Research Tomsk State University, 36 Lenin Ave., Tomsk, 634050, Russia
E. A. Ibragimov
National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russia
I. A. Glukhov
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia
A. M. Mairambekova
National Research Tomsk State University, 36 Lenin Ave., Tomsk, 634050, Russia
A. Yu. Nikonov
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634055, Russia; National Research Tomsk State University, 36 Lenin Ave., Tomsk, 634050, Russia

ABSTRAKT

Experimental macrosamples of Ti–(40–50) wt.% Nb alloy were produced using a method of selective laser melting (SLM) from a Ti and Nb composite powder obtained by mechanical alloying in a highenergy planetary ball mill from pure titanium and niobium powders. The SLM process of a Ti–Nb alloy was modeled on micro- and macroscale levels. The necessity of additional heating the powder layer and substrate for successful occurrence of the SLM process on the microscale level was shown. Based on the calculations of the temperature field of the powder layer in the course of the SLM process, the modes and parameters of the SLM process required for the production of macrosamples of Ti–Nb system alloys were determined and specified. The Ti–45 wt.% Nb and Ti–48 wt.% Nb alloys formed as a result of SLM have a two-phase state. This state is represented by the matrix phase of β-bcc solid solution of titanium and niobium and by the nonequilibrium martensite α''-phase.


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