The Decomposition of the Metastable Beta Phase in High-Strength Titanium Alloys VST5553, Ti-10V-2Fe-3Al, and BETA-21S

被引：0
作者：
Kalienko, M. S. [1 ,2 ]
Zhelnina, A. V. [1 ,2 ]
Popov, A. A. [1 ,2 ,3 ]
机构：
[1] PSC VSMPO AVISMA Corp, Verkhnyaya Salda 624760, Russia
[2] Ural Fed Univ N, Ekaterinburg 620002, Russia
[3] Russian Acad Sci, Mikheev Inst Met Phys, Ural Branch, Ekaterinburg 620108, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2023年 / 124卷 / 09期
关键词：
titanium alloy; aging; dispersion strengthening; structure; TRANSFORMATION; MECHANISMS; BEHAVIOR; STATE;
D O I：
10.1134/S0031918X23601555
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The results of a study of the decomposition of a metastable beta-phase during aging of the alloys Ti-10V-2Fe-3Al, VST5553 (Ti-5Al-5V-5Mo-3Cr-0.5Fe), and Beta-21S (Ti-3Al-15Mo-2.7Nb-0.2Si, wt %) have been presented. A comparative study of the evolution of the microstructure and changes in the periods of the crystal lattice of phases in alloys during aging has been performed. Scanning electron microscopy has been used to study the morphology of the secondary alpha-phase formed during aging. The corresponding diffusion redistribution of alloying elements between the phases has been estimated using full-profile X-ray diffraction analysis and thermodynamic modeling via a JMatPRO software code and numerical calculations. It has been established that during aging, the change in the periods of crystal lattices in the studied alloys exhibits a general pattern due to the same origin of the diffusion redistribution of alloying elements between phases.
引用
收藏
页码：916 / 922
页数：7
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