Solid-solution hardening of a high-Entropy AlTiVCrNbMo alloy

The nature of solid-solution hardening of high-entropy alloys is discussed using an equiatomic bcc AlTiVCrNbMo alloy as an example. The hardening of the alloy is found to be characterized by an increase in the temperature dependence of the component of the critical shear strength and by anomalously...

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Bibliographic Details
Published in:Russian metallurgy Metally 2014-04, Vol.2014 (4), p.285-292
Main Authors: Firstov, S. A., Rogul’, T. G., Krapivka, N. A., Ponomarev, S. S., Tkach, V. N., Kovylyaev, V. V., Gorban’, V. F., Karpets, M. V.
Format: Article
Language:English
Subjects:
Body centered cubic lattice
Burgers vector
Chemistry and Materials Science
Estimates
Hardening
Materials Science
Metallic Materials
Metallurgy
Promising Materials and Technologies
Shear strength
Slip planes
Temperature dependence
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Summary:The nature of solid-solution hardening of high-entropy alloys is discussed using an equiatomic bcc AlTiVCrNbMo alloy as an example. The hardening of the alloy is found to be characterized by an increase in the temperature dependence of the component of the critical shear strength and by anomalously high athermic hardening due to the perpendicular slip plane of the Burgers vector component. A relatively simple expression is proposed to estimate the detected hardening Δ H (Δσ).
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029514040028