Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion
Abstract 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 cle...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-19835-9 |
| _version_ | 1828108602752106496 |
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| author | Adriana Eres-Castellanos Ana Santana David De-Castro Jose Antonio Jimenez Rosalia Rementeria Carlos Capdevila Francisca G. Caballero |
| author_facet | Adriana Eres-Castellanos Ana Santana David De-Castro Jose Antonio Jimenez Rosalia Rementeria Carlos Capdevila Francisca G. Caballero |
| author_sort | Adriana Eres-Castellanos |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-04-11T10:49:13Z |
| format | Article |
| id | doaj.art-cdcc9a42abc649d6939fc85c9443715e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T10:49:13Z |
| publishDate | 2022-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-cdcc9a42abc649d6939fc85c9443715e2022-12-22T04:28:58ZengNature PortfolioScientific Reports2045-23222022-09-0112111310.1038/s41598-022-19835-9Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusionAdriana Eres-Castellanos0Ana Santana1David De-Castro2Jose Antonio Jimenez3Rosalia Rementeria4Carlos Capdevila5Francisca G. Caballero6MATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)MATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)MATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)MATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)ArcelorMittal Global R&D SLab—Steel LabsMATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)MATERALIA Research Group, Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)Abstract 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.https://doi.org/10.1038/s41598-022-19835-9 |
| spellingShingle | Adriana Eres-Castellanos Ana Santana David De-Castro Jose Antonio Jimenez Rosalia Rementeria Carlos Capdevila Francisca G. Caballero Effect of processing parameters on texture and variant selection of as-built 300 maraging steel processed by laser powder bed fusion Scientific Reports |
| 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 |
| url | https://doi.org/10.1038/s41598-022-19835-9 |
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