Microstructural features of failure surfaces and low-temperature mechanical properties of Ti-6Al-4V ELI ultra-fine grained alloy

Microstructural regularities of failure surfaces and low-temperature mechanical characteristics in quasistatic uniaxial tension and compression have been studied for ultra-fine grained structural states of Ti-6Al-4V ELI alloy processed by equal channel angular pressing. Values of the yield stress an...

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Bibliographic Details
Published in:Strength of materials 2008, Vol.40 (1), p.71-74
Main Authors: Tabachnikova, E. D., Podolskiy, A. V., Bengus, V. Z., Smirnov, S. N., Csach, K., Miškuf, J., Saitova, L. R., Semenova, I. P., Valiev, R. Z.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Materials Science
Solid Mechanics
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Summary:Microstructural regularities of failure surfaces and low-temperature mechanical characteristics in quasistatic uniaxial tension and compression have been studied for ultra-fine grained structural states of Ti-6Al-4V ELI alloy processed by equal channel angular pressing. Values of the yield stress and uniform strain at 300, 77, and 4.2 K have been compared for structural states of the Ti-6Al-4V ELI alloy that differ in the average grain size and the morphology of α and β phases. Statistical distributions of dimple sizes on the failure surfaces have been studied for different structural states and temperatures.
ISSN:0039-2316
1573-9325
DOI:10.1007/s11223-008-0019-7