Chem.
Met. Alloys 6
(2013) 196-199
https://doi.org/10.30970/cma6.0270
Tetiana KOSORUKOVA, Georgiy FIRSTOV, Henri NOËL, Volodymir
IVANCHENKO
The crystal structure changes in Ni3Ta
were experimentally investigated by X-ray powder diffraction of alloys prepared
by arc melting, ground and annealed in the temperature range 673-1173 K
for 1 day. It was found that an increase of the annealing temperatures
leads to a change of the product of the transformation of the high-temperature
tetragonal phase from monoclinic to orthorhombic. The changes are promoted by
recovery and recrystallization processes. Some
oxidation at the higher annealing temperatures led to the reappearance of the
phase with monoclinic structure.
Volume fractions of the phases
observed in Ni3Ta powders annealed at different temperatures for
1 day
Keywords
Phase transformation / Binary
compound /