Features of dislocation dynamics in aged alloys
https://doi.org/10.34680/2076-8052.2023.3(132).457-461
Abstract
The high-speed deformation of aged alloys containing alloying elements has been theoretically analyzed. An expression for the contribution of the Guinier-Preston zones to the value of the dynamic yield strength has been obtained. Dynamic effects have a significant influence on the motion of dislocation ensembles. The dynamic yield strength under certain conditions does not depend on the rate of plastic deformation. The concentration dependence of the dynamic yield strength is determined by the competition between the interaction of dislocations with alloying elements and dislocations of the ensemble. If the interaction with alloying elements dominates, the dynamic yield strength decreases with increasing their concentration. If the collective interaction of dislocations dominates, the yield strength decreases as their density increases.
About the Author
V. V. Malashenko
Galkin Donetsk Institute for Physics and Engineering
Russian Federation
Russian Federation
Donetsk
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Review
For citations:
Malashenko V.V. Features of dislocation dynamics in aged alloys. Title in english. 2023;(3(132)):457-461. (In Russ.) https://doi.org/10.34680/2076-8052.2023.3(132).457-461
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