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纳米力学科学与技术:国际期刊
ESCI SJR: 0.228 SNIP: 0.484 CiteScore™: 0.37

ISSN 打印: 2572-4258
ISSN 在线: 2572-4266

纳米力学科学与技术:国际期刊

Formerly known as Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanoSciTechnolIntJ.v8.i3.30
pages 203-210

Ti−Nb POWDER ALLOYS IN THE ADDITIVE TECHNOLOGIES

Zh. G. Kovalevskaya
Institute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 2/4 Akademicheskii Ave., Tomsk, 634021, Russia; Tomsk Polytechnic University, 30 Lenin Ave., Tomsk, 634050, Russia
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
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
M. A. Korchagin
Tomsk State University, 36 Lenin Ave., Tomsk, 634050, Russia; Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, 18 Kutateladze Str., Novosibirsk, 630128, Russia
V. A. Bataev
Novosibirsk State Technical University, 20 Karl Marx Ave., Novosibirsk, 630073, Russia

ABSTRACT

The Ti–Nb powder alloy with mass content of 40% and 45% Nb was obtained from Ti and Nb powder mixture in a planetary ball mill in an argon atmosphere. The structure, grain-size distribution, and phase composition of the powder alloy obtained are determined by the time of mechanical alloying. With increase in the alloying time from 3 to 20 min, the average size of the particles formed increases from 41 to 67 μm and then decreases twice at the 25th min of alloying. The shape of the particles changes from shells to pellets. With increase in the alloying time, the quantity of the total solid solution of Ti and Nb components increases in the alloy. A monophase β-alloy is formed in the powder alloy containing 40 wt.% of Nb at alloying time of 20 min. A monophase β-alloy is formed in the powder alloy with 45 wt.% of Nb at alloying time of 15 min. Composition with the 45 wt.% Nb obtained at 15 min alloying time is recommended for using the powder alloy in the process of selective laser melting. Optimization of the powder alloy grain-size distribution obtained requires the sieving of the powder large fraction.


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