Features of Dynamic Fracture of Ultrafine-Grained Aluminum Alloy AMg4.5

The features of the fracture of the aluminum alloy AMg4.5 under dynamic tension according to the Kolsky methods using Split-Hopkinson pressure bar are considered. Experimental and theoretical data of strength characteristics of the alloy in the initial coarse-grained and ultrafine-grained states are...

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Bibliographic Details
Published in:Technical physics 2024, Vol.69 (3), p.534-539
Main Author: Evstifeev, A. D.
Format: Article
Language:English
Subjects:
Aluminum base alloys
Classical and Continuum Physics
Deformation effects
Physics
Physics and Astronomy
Plastic deformation
Pressure effects
Split Hopkinson pressure bars
Ultrafines
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Summary:The features of the fracture of the aluminum alloy AMg4.5 under dynamic tension according to the Kolsky methods using Split-Hopkinson pressure bar are considered. Experimental and theoretical data of strength characteristics of the alloy in the initial coarse-grained and ultrafine-grained states are presented. It is shown that the high degree of deformation of the material obtained in the process of severe plastic deformation by torsion under high pressure has a negative effect on the dynamic strength of the material.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784224020129