1. Phase Composition and Microstructure of Ti-Nb Alloy Produced by Selective Laser Melting
- Author
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P. V. Uvarkin, Yu.P. Sharkeev, I. A. Glukhov, A. A. Saprykin, E. A. Ibragimov, E.V. Babakova, M A Chimich, Zh. G. Kovalevskaya, and A. Yu. Eroshenko
- Subjects
Materials science ,композиционные порошки ,Alloy ,Niobium ,chemistry.chemical_element ,02 engineering and technology ,engineering.material ,01 natural sciences ,селективное плавление ,лазерное плавление ,Phase (matter) ,0103 physical sciences ,микротвердость ,Selective laser melting ,микроструктуры ,010302 applied physics ,сплавы ,Metallurgy ,021001 nanoscience & nanotechnology ,Microstructure ,Grain size ,фазовый состав ,chemistry ,Martensite ,engineering ,Grain boundary ,0210 nano-technology - 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 [beta]-alloy substrate phase (grain size was 5-7 pm) and non-equilibrium martensite [alpha]"- phase (grain size was 0.1-0.7 [mu]m). [alpha]"-phase grains were found along [beta]-phase grain boundaries and inside grains, including decreased niobium content. Alloy microhardness varied within 4200-5500 MPa.
- Published
- 2016
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