The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg

A hybrid post-treatment combining tumble finishing as a final step after shot peening and heat treatment was developed to alleviate the adverse effects of internal and surface defects on the fatigue performance of laser powder bed fusion AlSi10Mg samples. The effects of each post-treatment were inve...

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Autores principales: Maleki, Erfan, Bagherifard, Sara, Unal, Okan, Revuru, Manoj, Bandini, Michele, Guagliano, Mario
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/PMC10030593/
https://www.ncbi.nlm.nih.gov/pubmed/36944692
http://dx.doi.org/10.1038/s41598-023-30660-6
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author Maleki, Erfan
Bagherifard, Sara
Unal, Okan
Revuru, Manoj
Bandini, Michele
Guagliano, Mario
author_facet Maleki, Erfan
Bagherifard, Sara
Unal, Okan
Revuru, Manoj
Bandini, Michele
Guagliano, Mario
author_sort Maleki, Erfan
collection PubMed
description A hybrid post-treatment combining tumble finishing as a final step after shot peening and heat treatment was developed to alleviate the adverse effects of internal and surface defects on the fatigue performance of laser powder bed fusion AlSi10Mg samples. The effects of each post-treatment were investigated individually and synergistically on microstructure, surface morphology and roughness, hardness, residual stresses, porosity, and rotating bending fatigue behavior of V-notched AlSi10Mg samples. The results reveal that tumble finishing can highly reduce surface roughness by 28 and 32% compared to the as-built and heat-treated states while inducing extra surface layer hardening and compressive residual stresses. The hybrid post-treatment of heat treatment + shot peening + tumble finishing significantly increased the fatigue life of the samples by over 500 times higher compared to the as-built series.
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spelling pubmed-100305932023-03-23 The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg Maleki, Erfan Bagherifard, Sara Unal, Okan Revuru, Manoj Bandini, Michele Guagliano, Mario Sci Rep Article A hybrid post-treatment combining tumble finishing as a final step after shot peening and heat treatment was developed to alleviate the adverse effects of internal and surface defects on the fatigue performance of laser powder bed fusion AlSi10Mg samples. The effects of each post-treatment were investigated individually and synergistically on microstructure, surface morphology and roughness, hardness, residual stresses, porosity, and rotating bending fatigue behavior of V-notched AlSi10Mg samples. The results reveal that tumble finishing can highly reduce surface roughness by 28 and 32% compared to the as-built and heat-treated states while inducing extra surface layer hardening and compressive residual stresses. The hybrid post-treatment of heat treatment + shot peening + tumble finishing significantly increased the fatigue life of the samples by over 500 times higher compared to the as-built series. Nature Publishing Group UK 2023-03-21 /pmc/articles/PMC10030593/ /pubmed/36944692 http://dx.doi.org/10.1038/s41598-023-30660-6 Text en © The Author(s) 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
Maleki, Erfan
Bagherifard, Sara
Unal, Okan
Revuru, Manoj
Bandini, Michele
Guagliano, Mario
The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg
title The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg
title_full The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg
title_fullStr The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg
title_full_unstemmed The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg
title_short The efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion AlSi10Mg
title_sort efficiency of tumble finishing as a final post-treatment for fatigue enhancement of notched laser powder bed fusion alsi10mg
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10030593/
https://www.ncbi.nlm.nih.gov/pubmed/36944692
http://dx.doi.org/10.1038/s41598-023-30660-6
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