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Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens
In the presented study, LPBF 316L stainless steel tensile specimens were manufactured in three different orientations for the analysis of anisotropy. The first set of specimens was built vertically on the build platform, and two other sets were oriented horizontally perpendicular to each other. Tens...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658429/ https://www.ncbi.nlm.nih.gov/pubmed/34885332 http://dx.doi.org/10.3390/ma14237176 |
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author | Fedorenko, Alexey Fedulov, Boris Kuzminova, Yulia Evlashin, Stanislav Staroverov, Oleg Tretyakov, Mikhail Lomakin, Evgeny Akhatov, Iskander |
author_facet | Fedorenko, Alexey Fedulov, Boris Kuzminova, Yulia Evlashin, Stanislav Staroverov, Oleg Tretyakov, Mikhail Lomakin, Evgeny Akhatov, Iskander |
author_sort | Fedorenko, Alexey |
collection | PubMed |
description | In the presented study, LPBF 316L stainless steel tensile specimens were manufactured in three different orientations for the analysis of anisotropy. The first set of specimens was built vertically on the build platform, and two other sets were oriented horizontally perpendicular to each other. Tensile test results show that mean Young’s modulus of vertically built specimens is significantly less then horizontal ones (158.7 GPa versus 198 GPa), as well as yield strength and elongation. A role of residual stress in a deviation of tensile loading diagrams is investigated as a possible explanation. Simulation of the build process on the basis of ABAQUS FEA software was used to predict residual stress in 316L cylindrical specimens. Virtual tensile test results show that residual stress affects the initial stage of the loading curve with a tendency to reduce apparent Young’s modulus, measured according to standard mechanical test methods. |
format | Online Article Text |
id | pubmed-8658429 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86584292021-12-10 Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens Fedorenko, Alexey Fedulov, Boris Kuzminova, Yulia Evlashin, Stanislav Staroverov, Oleg Tretyakov, Mikhail Lomakin, Evgeny Akhatov, Iskander Materials (Basel) Article In the presented study, LPBF 316L stainless steel tensile specimens were manufactured in three different orientations for the analysis of anisotropy. The first set of specimens was built vertically on the build platform, and two other sets were oriented horizontally perpendicular to each other. Tensile test results show that mean Young’s modulus of vertically built specimens is significantly less then horizontal ones (158.7 GPa versus 198 GPa), as well as yield strength and elongation. A role of residual stress in a deviation of tensile loading diagrams is investigated as a possible explanation. Simulation of the build process on the basis of ABAQUS FEA software was used to predict residual stress in 316L cylindrical specimens. Virtual tensile test results show that residual stress affects the initial stage of the loading curve with a tendency to reduce apparent Young’s modulus, measured according to standard mechanical test methods. MDPI 2021-11-25 /pmc/articles/PMC8658429/ /pubmed/34885332 http://dx.doi.org/10.3390/ma14237176 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Fedorenko, Alexey Fedulov, Boris Kuzminova, Yulia Evlashin, Stanislav Staroverov, Oleg Tretyakov, Mikhail Lomakin, Evgeny Akhatov, Iskander Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens |
title | Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens |
title_full | Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens |
title_fullStr | Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens |
title_full_unstemmed | Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens |
title_short | Anisotropy of Mechanical Properties and Residual Stress in Additively Manufactured 316L Specimens |
title_sort | anisotropy of mechanical properties and residual stress in additively manufactured 316l specimens |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658429/ https://www.ncbi.nlm.nih.gov/pubmed/34885332 http://dx.doi.org/10.3390/ma14237176 |
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