Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy

In this study, microstructural features direct metal laser melted (DMLM) aluminium–silicon-magnesium (AlSi10Mg) are investigated using advanced transmission electron microscopy (TEM) and high-resolution TEM (HRTEM). The focus is on post-processing by ECAP (Equal Channel Angular Pressing) and its eff...

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Autores principales: Snopiński, Przemysław, Kotoul, Michal, Petruška, Jindřich, Rusz, Stanislav, Żaba, Krzysztof, Hilšer, Ondřej
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10533813/
https://www.ncbi.nlm.nih.gov/pubmed/37759080
http://dx.doi.org/10.1038/s41598-023-43448-5
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author Snopiński, Przemysław
Kotoul, Michal
Petruška, Jindřich
Rusz, Stanislav
Żaba, Krzysztof
Hilšer, Ondřej
author_facet Snopiński, Przemysław
Kotoul, Michal
Petruška, Jindřich
Rusz, Stanislav
Żaba, Krzysztof
Hilšer, Ondřej
author_sort Snopiński, Przemysław
collection PubMed
description In this study, microstructural features direct metal laser melted (DMLM) aluminium–silicon-magnesium (AlSi10Mg) are investigated using advanced transmission electron microscopy (TEM) and high-resolution TEM (HRTEM). The focus is on post-processing by ECAP (Equal Channel Angular Pressing) and its effects on grain refinement, stacking fault formation and dislocation accumulation. In addition, the strength enhancing role of stacking faults is for the first time quantified. The results show that ECAP can increase the yield strength from 294 to 396 MPa, while the elongation increases from 2.4% to 6%. These results show that ECAP processing offers a new approach for producing AlSi10Mg products with improved strength and ductility.
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spelling pubmed-105338132023-09-29 Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy Snopiński, Przemysław Kotoul, Michal Petruška, Jindřich Rusz, Stanislav Żaba, Krzysztof Hilšer, Ondřej Sci Rep Article In this study, microstructural features direct metal laser melted (DMLM) aluminium–silicon-magnesium (AlSi10Mg) are investigated using advanced transmission electron microscopy (TEM) and high-resolution TEM (HRTEM). The focus is on post-processing by ECAP (Equal Channel Angular Pressing) and its effects on grain refinement, stacking fault formation and dislocation accumulation. In addition, the strength enhancing role of stacking faults is for the first time quantified. The results show that ECAP can increase the yield strength from 294 to 396 MPa, while the elongation increases from 2.4% to 6%. These results show that ECAP processing offers a new approach for producing AlSi10Mg products with improved strength and ductility. Nature Publishing Group UK 2023-09-27 /pmc/articles/PMC10533813/ /pubmed/37759080 http://dx.doi.org/10.1038/s41598-023-43448-5 Text en © The Author(s) 2023, corrected publication 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Snopiński, Przemysław
Kotoul, Michal
Petruška, Jindřich
Rusz, Stanislav
Żaba, Krzysztof
Hilšer, Ondřej
Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy
title Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy
title_full Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy
title_fullStr Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy
title_full_unstemmed Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy
title_short Revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed LPBF AlSi10Mg alloy
title_sort revealing the strengthening contribution of stacking faults, dislocations and grain boundaries in severely deformed lpbf alsi10mg alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10533813/
https://www.ncbi.nlm.nih.gov/pubmed/37759080
http://dx.doi.org/10.1038/s41598-023-43448-5
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