Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging

An extruded magnesium AZ31 magnesium alloy was processed by rotary swaging (RSW) and then deformed by tension and compression at room temperature. The work-hardening behaviour of 1–5 times swaged samples was analysed using Kocks-Mecking plots. Accumulation of dislocations on dislocation obstacles an...

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Autores principales: Trojanová, Zuzanka, Drozd, Zdeněk, Halmešová, Kristýna, Džugan, Ján, Škraban, Tomáš, Minárik, Peter, Németh, Gergely, Lukáč, Pavel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7818120/
https://www.ncbi.nlm.nih.gov/pubmed/33396375
http://dx.doi.org/10.3390/ma14010157
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author Trojanová, Zuzanka
Drozd, Zdeněk
Halmešová, Kristýna
Džugan, Ján
Škraban, Tomáš
Minárik, Peter
Németh, Gergely
Lukáč, Pavel
author_facet Trojanová, Zuzanka
Drozd, Zdeněk
Halmešová, Kristýna
Džugan, Ján
Škraban, Tomáš
Minárik, Peter
Németh, Gergely
Lukáč, Pavel
author_sort Trojanová, Zuzanka
collection PubMed
description An extruded magnesium AZ31 magnesium alloy was processed by rotary swaging (RSW) and then deformed by tension and compression at room temperature. The work-hardening behaviour of 1–5 times swaged samples was analysed using Kocks-Mecking plots. Accumulation of dislocations on dislocation obstacles and twin boundaries is the deciding factor for the strain hardening. Profuse twinning in compression seems to be the reason for the higher hardening observed during compression. The main softening mechanism is apparently the cross-slip between the pyramidal planes of the second and first order. A massive twinning observed at the deformation beginning influences the Hall-Petch parameters.
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spelling pubmed-78181202021-01-22 Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging Trojanová, Zuzanka Drozd, Zdeněk Halmešová, Kristýna Džugan, Ján Škraban, Tomáš Minárik, Peter Németh, Gergely Lukáč, Pavel Materials (Basel) Article An extruded magnesium AZ31 magnesium alloy was processed by rotary swaging (RSW) and then deformed by tension and compression at room temperature. The work-hardening behaviour of 1–5 times swaged samples was analysed using Kocks-Mecking plots. Accumulation of dislocations on dislocation obstacles and twin boundaries is the deciding factor for the strain hardening. Profuse twinning in compression seems to be the reason for the higher hardening observed during compression. The main softening mechanism is apparently the cross-slip between the pyramidal planes of the second and first order. A massive twinning observed at the deformation beginning influences the Hall-Petch parameters. MDPI 2020-12-31 /pmc/articles/PMC7818120/ /pubmed/33396375 http://dx.doi.org/10.3390/ma14010157 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Trojanová, Zuzanka
Drozd, Zdeněk
Halmešová, Kristýna
Džugan, Ján
Škraban, Tomáš
Minárik, Peter
Németh, Gergely
Lukáč, Pavel
Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging
title Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging
title_full Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging
title_fullStr Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging
title_full_unstemmed Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging
title_short Strain Hardening in an AZ31 Alloy Submitted to Rotary Swaging
title_sort strain hardening in an az31 alloy submitted to rotary swaging
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7818120/
https://www.ncbi.nlm.nih.gov/pubmed/33396375
http://dx.doi.org/10.3390/ma14010157
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