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Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion
Among the materials that might be manufactured with laser powder bed fusion (LPBF), one can highlight maraging steels, with excellent weldability, strength and fracture toughness. However, the effects of the processing parameters and the mechanisms governing the as-built texture are not clear yet. A...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9519872/ https://www.ncbi.nlm.nih.gov/pubmed/36171330 http://dx.doi.org/10.1038/s41598-022-19835-9 |
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author | Eres-Castellanos, Adriana Santana, Ana De-Castro, David Jimenez, Jose Antonio Rementeria, Rosalia Capdevila, Carlos Caballero, Francisca G. |
author_facet | Eres-Castellanos, Adriana Santana, Ana De-Castro, David Jimenez, Jose Antonio Rementeria, Rosalia Capdevila, Carlos Caballero, Francisca G. |
author_sort | Eres-Castellanos, Adriana |
collection | PubMed |
description | Among the materials that might be manufactured with laser powder bed fusion (LPBF), one can highlight maraging steels, with excellent weldability, strength and fracture toughness. However, the effects of the processing parameters and the mechanisms governing the as-built texture are not clear yet. A recent publication showed a low texture index in the prior austenite, in contrast to other alloys subjected to LPBF with the same strategy. Authors suggested several hypotheses, although no conclusions were drawn. This work aims to investigate these findings by using a 300 maraging steel processed under different conditions, i.e. different printer, powder layer thickness and laser emission mode. To do so, X-Ray Diffraction, Electron Backscattered Diffraction and Scanning Electron Microscopy have been used. Results show that the heat treatment intrinsic to the LPBF process does not affect the prior austenite grains, whose texture and morphology remain unchanged throughout the process. Also, for the studied ranges, the microstructure texture is not related to the powder layer thickness or to the laser emission mode, although it could be affected by the laser power or the scan strategy. Finally, a low degree of variant selection has been observed, where the selected variants are those that contribute to a martensite cubic rotated texture. |
format | Online Article Text |
id | pubmed-9519872 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-95198722022-09-30 Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion Eres-Castellanos, Adriana Santana, Ana De-Castro, David Jimenez, Jose Antonio Rementeria, Rosalia Capdevila, Carlos Caballero, Francisca G. Sci Rep Article Among the materials that might be manufactured with laser powder bed fusion (LPBF), one can highlight maraging steels, with excellent weldability, strength and fracture toughness. However, the effects of the processing parameters and the mechanisms governing the as-built texture are not clear yet. A recent publication showed a low texture index in the prior austenite, in contrast to other alloys subjected to LPBF with the same strategy. Authors suggested several hypotheses, although no conclusions were drawn. This work aims to investigate these findings by using a 300 maraging steel processed under different conditions, i.e. different printer, powder layer thickness and laser emission mode. To do so, X-Ray Diffraction, Electron Backscattered Diffraction and Scanning Electron Microscopy have been used. Results show that the heat treatment intrinsic to the LPBF process does not affect the prior austenite grains, whose texture and morphology remain unchanged throughout the process. Also, for the studied ranges, the microstructure texture is not related to the powder layer thickness or to the laser emission mode, although it could be affected by the laser power or the scan strategy. Finally, a low degree of variant selection has been observed, where the selected variants are those that contribute to a martensite cubic rotated texture. Nature Publishing Group UK 2022-09-28 /pmc/articles/PMC9519872/ /pubmed/36171330 http://dx.doi.org/10.1038/s41598-022-19835-9 Text en © The Author(s) 2022 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 Eres-Castellanos, Adriana Santana, Ana De-Castro, David Jimenez, Jose Antonio Rementeria, Rosalia Capdevila, Carlos Caballero, Francisca G. Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
title | Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
title_full | Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
title_fullStr | Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
title_full_unstemmed | Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
title_short | Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
title_sort | effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9519872/ https://www.ncbi.nlm.nih.gov/pubmed/36171330 http://dx.doi.org/10.1038/s41598-022-19835-9 |
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