Shear strength of Al–Cu alloy with different types of hardening precipitates: molecular dynamics and continuum modeling

P. A. Bezborodova; Безбородова П. А.; V. S. Krasnikov; Красников В. С.; M. R. Gazizov; Газизов М. Р.; A. E. Mayer; Майер А. Е.; V. V. Pogorelko; Погорелко В. В.

doi:10.31857/S036767652370271X

Shear strength of Al–Cu alloy with different types of hardening precipitates: molecular dynamics and continuum modeling

Authors: Bezborodova P.A.¹, Krasnikov V.S.¹, Gazizov M.R.², Mayer A.E.¹, Pogorelko V.V.¹
Affiliations:
1. Chelyabinsk State University
2. Belgorod State National Research University
Issue: Vol 87, No 11 (2023)
Pages: 1562-1568
Section: Articles
URL: https://journal-vniispk.ru/0367-6765/article/view/232479
DOI: https://doi.org/10.31857/S036767652370271X
EDN: https://elibrary.ru/FOQZPF
ID: 232479

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Abstract
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Abstract

A molecular dynamics study of the motion of dislocations in aluminum containing hardening copper precipitates is carried out. The paper considers the interaction of dislocation with four types of precipitates, the structure of which was determined in experimental work. The energy of dislocation segments attached to hardening phases is determined and used as a parameter of the continuum model of the dislocation-precipitate interaction. An increase in energy is observed for hybrid precipitates compared to non-hybrid ones.

Keywords

Al–Cu alloy, molecular dynamics, hardening precipitate, dislocation, shear strength

References

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