Comparative Study of the Effect of Isothermal Exposure on Metastable β-Titanium Alloy Mechanical Properties

A comparative study of chemical composition, structure, and mechanical properties (Rockwell hardness, HRC) is conducted for pseudo-β-titanium alloys for structural purposes (VT47, VT35, Timet LCB) after isothermal ageing over wide ranges of temperature and exposure times. Diagrams are plotted provid...

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Bibliographic Details
Published in:Metallurgist (New York) 2021, Vol.64 (9-10), p.1057-1067
Main Authors: Duyunova, V. A., Nochovnaya, N. A., Shiryaev, A. A.
Format: Article
Language:English
Subjects:
Aging (metallurgy)
Alloying elements
Characterization and Evaluation of Materials
Chemical composition
Chemistry and Materials Science
Comparative studies
Materials Science
Mechanical properties
Metallic Materials
Phase transitions
Rockwell hardness
Titanium alloys
Titanium base alloys
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Summary:A comparative study of chemical composition, structure, and mechanical properties (Rockwell hardness, HRC) is conducted for pseudo-β-titanium alloys for structural purposes (VT47, VT35, Timet LCB) after isothermal ageing over wide ranges of temperature and exposure times. Diagrams are plotted providing summarized hardness values for VT47 and Timet LCB alloys. Dependencies are revealed between hardness of these alloys and their alloying level with β-stabilizing elements as well as features of phase and structural transformations. “Incubation” periods are established for an increase in hardness in the temperature range studied and comparative evaluation of these periods is provided.
ISSN:0026-0894
1573-8892
DOI:10.1007/s11015-021-01087-z