Elucidating sequential laser remelting in tailoring microstructure and mechanical performance of laser-directed energy deposited Hastelloy-X.
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| Title: | Elucidating sequential laser remelting in tailoring microstructure and mechanical performance of laser-directed energy deposited Hastelloy-X. |
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| Authors: | Arackal Narayanan, Jinoop1 (AUTHOR) J.ArackalNarayanan@tees.ac.uk, Paul, Christ Prakash2,3 (AUTHOR) paulcp@rrcat.gov.in, Kumar, J. Ganesh4 (AUTHOR), Yadav, Sunil2,3 (AUTHOR), Hughes, David1 (AUTHOR) |
| Source: | International Journal of Advanced Manufacturing Technology. Feb2025, Vol. 136 Issue 10, p4355-4367. 13p. |
| Subjects: | Sequential analysis, Manufacturing processes, Surface roughness, Surface properties, Porosity |
| Abstract: | The current manuscript undertakes a systematic analysis of sequential layer-by-layer laser remelting (SLLR) within the context of laser-directed energy deposition (LDED) of Hastelloy-X (HX) bulk structures. Comparative analysis is conducted between the surface and bulk properties of LDED-built samples and those incorporating SLLR. Integrating SLLR with LDED results in a notable decrease in surface roughness by 71.5% and porosity by eight times. While both lack of fusion and gas porosity are evident in the as-built sample, the combination of SLLR with LDED shows only gas porosity. Moreover, microstructural refinement is observed after SLLR without preferential growth along (100), unlike in samples without SLLR. Analysis reveals segregations of Mo, Si, and C and the presence of Mo-rich carbides in both LDED and SLLR samples. The finer dendritic microstructures observed in SLLR samples contribute to a 12% increase in microhardness and a 7% rise in yield strength along the build direction compared to samples without SLLR. This study lays the path for fabricating dense components with tailored microstructures and mechanical properties during LDED through the utilisation of SLLR. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 182881791 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Elucidating sequential laser remelting in tailoring microstructure and mechanical performance of laser-directed energy deposited Hastelloy-X. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Arackal+Narayanan%2C+Jinoop%22">Arackal Narayanan, Jinoop</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> J.ArackalNarayanan@tees.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Paul%2C+Christ+Prakash%22">Paul, Christ Prakash</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> paulcp@rrcat.gov.in</i><br /><searchLink fieldCode="AR" term="%22Kumar%2C+J%2E+Ganesh%22">Kumar, J. Ganesh</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yadav%2C+Sunil%22">Yadav, Sunil</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hughes%2C+David%22">Hughes, David</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Advanced+Manufacturing+Technology%22">International Journal of Advanced Manufacturing Technology</searchLink>. Feb2025, Vol. 136 Issue 10, p4355-4367. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Sequential+analysis%22">Sequential analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Manufacturing+processes%22">Manufacturing processes</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+roughness%22">Surface roughness</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+properties%22">Surface properties</searchLink><br /><searchLink fieldCode="DE" term="%22Porosity%22">Porosity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The current manuscript undertakes a systematic analysis of sequential layer-by-layer laser remelting (SLLR) within the context of laser-directed energy deposition (LDED) of Hastelloy-X (HX) bulk structures. Comparative analysis is conducted between the surface and bulk properties of LDED-built samples and those incorporating SLLR. Integrating SLLR with LDED results in a notable decrease in surface roughness by 71.5% and porosity by eight times. While both lack of fusion and gas porosity are evident in the as-built sample, the combination of SLLR with LDED shows only gas porosity. Moreover, microstructural refinement is observed after SLLR without preferential growth along (100), unlike in samples without SLLR. Analysis reveals segregations of Mo, Si, and C and the presence of Mo-rich carbides in both LDED and SLLR samples. The finer dendritic microstructures observed in SLLR samples contribute to a 12% increase in microhardness and a 7% rise in yield strength along the build direction compared to samples without SLLR. This study lays the path for fabricating dense components with tailored microstructures and mechanical properties during LDED through the utilisation of SLLR. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Advanced Manufacturing Technology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00170-025-15084-y Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 4355 Subjects: – SubjectFull: Sequential analysis Type: general – SubjectFull: Manufacturing processes Type: general – SubjectFull: Surface roughness Type: general – SubjectFull: Surface properties Type: general – SubjectFull: Porosity Type: general Titles: – TitleFull: Elucidating sequential laser remelting in tailoring microstructure and mechanical performance of laser-directed energy deposited Hastelloy-X. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Arackal Narayanan, Jinoop – PersonEntity: Name: NameFull: Paul, Christ Prakash – PersonEntity: Name: NameFull: Kumar, J. Ganesh – PersonEntity: Name: NameFull: Yadav, Sunil – PersonEntity: Name: NameFull: Hughes, David IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 02 Text: Feb2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 02683768 Numbering: – Type: volume Value: 136 – Type: issue Value: 10 Titles: – TitleFull: International Journal of Advanced Manufacturing Technology Type: main |
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