Influence of Thermal Treatment of Ti-45Nb Alloy in Ultrafine-Grained State on Its Structural Parameters and Heat Capacity

被引：1
|
作者：
Legostaeva, E., V [1 ]
Khimich, M. A. [1 ]
Sharkeev, Yu P. [1 ]
Eroshenko, A. Yu [1 ]
Belyavskaya, O. A. [1 ]
Zhilyakov, A. Yu [1 ]
Kuznetsov, V. P. [1 ]
机构：
[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk, Russia
来源：
RUSSIAN PHYSICS JOURNAL | 2022年 / 64卷 / 09期
关键词：
Ti-45; wt; % Nb alloy; ultrafine-grained microstructure; X-ray diffraction analysis; heat capacity; phase transitions; MECHANICAL-PROPERTIES; TITANIUM-ALLOYS; TI-NB; ZIRCONIUM; DIFFUSIVITY; EVOLUTION; MODULUS; NIOBIUM;
D O I：
10.1007/s11182-022-02506-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of heat treatment of the Ti - 45 wt.% Nb alloy in the ultrafine- and coarse-grained states on its structural parameters (lattice parameters, volumetric phase ratio, sizes of coherent scattering regions, residual normal stresses) and their relationship with the heat capacity are studied. It is found out that the differing character of the temperature dependence of heat capacity for the alloy in these states is related to the structural-phase features of the alloy in the UFG state, specifically, to the two-phase structure consisting of beta- and alpha-grains, dispersion hardened by the omega-phase, and the phase transitions in the temperature range of 400-600 degrees C.
引用
收藏
页码：1676 / 1683
页数：8
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