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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doaj-32748b9b0bfb4f02b2e44f625388df4f2020-12-09T00:04:30ZengMDPI AGMaterials1996-19442020-12-01135605560510.3390/ma13245605Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 AlloysDaria Drozdenko0Patrik Dobroň1Klaudia Fekete2Sangbong Yi3Jan Bohlen4Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 12116 Prague, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 12116 Prague, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 12116 Prague, Czech RepublicMagIC-Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, D21502 Geesthacht, GermanyMagIC-Magnesium Innovation Centre, Helmholtz-Zentrum Geesthacht, Max-Planck Str. 1, D21502 Geesthacht, GermanyThe 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.https://www.mdpi.com/1996-1944/13/24/5605magnesium alloystwin boundariesprecipitationtwinningdetwinning |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daria Drozdenko Patrik Dobroň Klaudia Fekete Sangbong Yi Jan Bohlen |
spellingShingle |
Daria Drozdenko Patrik Dobroň Klaudia Fekete Sangbong Yi Jan Bohlen Twinning–Detwinning in Pre-Compressed and Thermally Treated ZX10 and ZN10 Alloys Materials magnesium alloys twin boundaries precipitation twinning detwinning |
author_facet |
Daria Drozdenko Patrik Dobroň Klaudia Fekete Sangbong Yi Jan Bohlen |
author_sort |
Daria Drozdenko |
title |
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_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_sort |
twinning–detwinning in pre-compressed and thermally treated zx10 and zn10 alloys |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-12-01 |
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. |
topic |
magnesium alloys twin boundaries precipitation twinning detwinning |
url |
https://www.mdpi.com/1996-1944/13/24/5605 |
work_keys_str_mv |
AT dariadrozdenko twinningdetwinninginprecompressedandthermallytreatedzx10andzn10alloys AT patrikdobron twinningdetwinninginprecompressedandthermallytreatedzx10andzn10alloys AT klaudiafekete twinningdetwinninginprecompressedandthermallytreatedzx10andzn10alloys AT sangbongyi twinningdetwinninginprecompressedandthermallytreatedzx10andzn10alloys AT janbohlen twinningdetwinninginprecompressedandthermallytreatedzx10andzn10alloys |
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1724388613908594688 |