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Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys

The deformation behavior of extruded Mg alloys with a Ca or Nd addition (up to 0.5 wt.%) is addressed with respect to a specified thermo-mechanical treatment, realized by pre-compression and subsequent heat treatment at intermediate temperature. The twinning–detwinning process is discussed with resp...

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Autores principales: Drozdenko, Daria, Dobroň, Patrik, Fekete, Klaudia, Yi, Sangbong, Bohlen, Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764377/
https://www.ncbi.nlm.nih.gov/pubmed/33302586
http://dx.doi.org/10.3390/ma13245605
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author Drozdenko, Daria
Dobroň, Patrik
Fekete, Klaudia
Yi, Sangbong
Bohlen, Jan
author_facet Drozdenko, Daria
Dobroň, Patrik
Fekete, Klaudia
Yi, Sangbong
Bohlen, Jan
author_sort Drozdenko, Daria
collection PubMed
description The deformation behavior of extruded Mg alloys with a Ca or Nd addition (up to 0.5 wt.%) is addressed with respect to a specified thermo-mechanical treatment, realized by pre-compression and subsequent heat treatment at intermediate temperature. The twinning–detwinning process is discussed with respect to the initial texture and applied heat treatment. Isothermal aging leads to precipitation and segregation along twin boundaries and dislocations in the pre-compressed Mg alloys, and, thus, variation in the mobility of twin boundaries (TB) is observed in the investigated alloys. Despite individual scenarios of TB mobility in particular grains, in general, the same TB mobility modes are observed in the alloys independently on Ca or Nd alloying. The microstructure development, particularly the twin volume fraction and the mobility of tensile {10-12} twin boundaries, is tracked using scanning electron microscopy, including backscattered electron (BSE) imaging and electron backscatter diffraction (EBSD) mapping.
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spelling pubmed-77643772020-12-27 Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys Drozdenko, Daria Dobroň, Patrik Fekete, Klaudia Yi, Sangbong Bohlen, Jan Materials (Basel) Article The deformation behavior of extruded Mg alloys with a Ca or Nd addition (up to 0.5 wt.%) is addressed with respect to a specified thermo-mechanical treatment, realized by pre-compression and subsequent heat treatment at intermediate temperature. The twinning–detwinning process is discussed with respect to the initial texture and applied heat treatment. Isothermal aging leads to precipitation and segregation along twin boundaries and dislocations in the pre-compressed Mg alloys, and, thus, variation in the mobility of twin boundaries (TB) is observed in the investigated alloys. Despite individual scenarios of TB mobility in particular grains, in general, the same TB mobility modes are observed in the alloys independently on Ca or Nd alloying. The microstructure development, particularly the twin volume fraction and the mobility of tensile {10-12} twin boundaries, is tracked using scanning electron microscopy, including backscattered electron (BSE) imaging and electron backscatter diffraction (EBSD) mapping. MDPI 2020-12-08 /pmc/articles/PMC7764377/ /pubmed/33302586 http://dx.doi.org/10.3390/ma13245605 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
Drozdenko, Daria
Dobroň, Patrik
Fekete, Klaudia
Yi, Sangbong
Bohlen, Jan
Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys
title Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys
title_full Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys
title_fullStr Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys
title_full_unstemmed Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys
title_short Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys
title_sort twinning–detwinning in pre-compressed and thermally treated zx10 and zn10 alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764377/
https://www.ncbi.nlm.nih.gov/pubmed/33302586
http://dx.doi.org/10.3390/ma13245605
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