A phenomenological model of twinning-mediated strain hardening

Alexei Vinogradov; Einar Agletdinov; Igor S. Yasnikov; Kristián Máthis; Yuri Estrin

doi:10.1016/j.msea.2020.139194

A phenomenological model of twinning-mediated strain hardening

Alexei Vinogradov, Einar Agletdinov, Igor S. Yasnikov, Kristián Máthis, Yuri Estrin

Materials Science & Engineering

Research output: Contribution to journal › Article › Research › peer-review

9 Citations (Scopus)

Abstract

We present a model of strain-hardening in materials with twinning-mediated plasticity. While the model is largely phenomenological, it was motivated by microstructural considerations and can be claimed to be physically sound. Using simple, yet sensible, assumptions regarding the stress-driven twinning kinetics and dislocation-twin interactions, constitutive equations governing the strain hardening behaviour were obtained and solved numerically. The solutions were compared with the experimental data on uniaxial deformation of pure magnesium and Mg alloy ZK60, and this comparison substantiated the validity and practicality of the model proposed.

Original language	English
Article number	139194
Number of pages	12
Journal	Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	780
DOIs	https://doi.org/10.1016/j.msea.2020.139194
Publication status	Published - 7 Apr 2020

Keywords

Dislocation-twin interaction
Magnesium
Phenomenological modelling
Strain hardening
Twinning

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title = "A phenomenological model of twinning-mediated strain hardening",

abstract = "We present a model of strain-hardening in materials with twinning-mediated plasticity. While the model is largely phenomenological, it was motivated by microstructural considerations and can be claimed to be physically sound. Using simple, yet sensible, assumptions regarding the stress-driven twinning kinetics and dislocation-twin interactions, constitutive equations governing the strain hardening behaviour were obtained and solved numerically. The solutions were compared with the experimental data on uniaxial deformation of pure magnesium and Mg alloy ZK60, and this comparison substantiated the validity and practicality of the model proposed.",

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T1 - A phenomenological model of twinning-mediated strain hardening

AU - Vinogradov, Alexei

AU - Agletdinov, Einar

AU - Yasnikov, Igor S.

AU - Máthis, Kristián

AU - Estrin, Yuri

PY - 2020/4/7

Y1 - 2020/4/7

N2 - We present a model of strain-hardening in materials with twinning-mediated plasticity. While the model is largely phenomenological, it was motivated by microstructural considerations and can be claimed to be physically sound. Using simple, yet sensible, assumptions regarding the stress-driven twinning kinetics and dislocation-twin interactions, constitutive equations governing the strain hardening behaviour were obtained and solved numerically. The solutions were compared with the experimental data on uniaxial deformation of pure magnesium and Mg alloy ZK60, and this comparison substantiated the validity and practicality of the model proposed.

AB - We present a model of strain-hardening in materials with twinning-mediated plasticity. While the model is largely phenomenological, it was motivated by microstructural considerations and can be claimed to be physically sound. Using simple, yet sensible, assumptions regarding the stress-driven twinning kinetics and dislocation-twin interactions, constitutive equations governing the strain hardening behaviour were obtained and solved numerically. The solutions were compared with the experimental data on uniaxial deformation of pure magnesium and Mg alloy ZK60, and this comparison substantiated the validity and practicality of the model proposed.

KW - Dislocation-twin interaction

KW - Magnesium

KW - Phenomenological modelling

KW - Strain hardening

KW - Twinning

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DO - 10.1016/j.msea.2020.139194

M3 - Article

AN - SCOPUS:85080980014

VL - 780

JO - Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing

SN - 0921-5093

M1 - 139194

ER -

A phenomenological model of twinning-mediated strain hardening

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Keywords

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