Determination of the Boundaries of the Metastable ω-Phase Region in Titanium and Zirconium Alloys

— The concentration boundary of the formation of the ω-phase in binary titanium alloys with d -metals of 4−11 groups of 4−6 periods were studied by X-ray diffraction analysis. It is established that the ω-phase is formed in all the alloys studied, with the exception of Ti−Zr alloys. It is shown that...

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Bibliographic Details
Published in:Physics of metals and metallography 2023-12, Vol.124 (12), p.1255-1264
Main Author: Dobromyslov, A. V.
Format: Article
Language:English
Subjects:
Binary alloys
Chemistry and Materials Science
Diffusion
Materials Science
Metallic Materials
Phase Transformations
Structure
Titanium base alloys
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Summary:— The concentration boundary of the formation of the ω-phase in binary titanium alloys with d -metals of 4−11 groups of 4−6 periods were studied by X-ray diffraction analysis. It is established that the ω-phase is formed in all the alloys studied, with the exception of Ti−Zr alloys. It is shown that the minimum concentration limit of the formation of the ω-phase is determined by the position of the curve of the finish of the martensitic β → ( ) transformation ( M f ). For most of the studied titanium alloys, concentrations were determined at which the M s and M f points correspond to a temperature of 20°C. The conditions for the formation of the ω-phase in titanium alloys were compared with the conditions for its formation in zirconium alloys.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X23700163