Publicação
Improvement of Surface Properties and Wear Resistance of Selective Laser Melting-Fabricated Inconel 625 Alloy by Ultrasonic Nanocrystal Surface Modification for Demanding Applications
| datacite.subject.fos | Engenharia e Tecnologia::Engenharia Mecânica | |
| datacite.subject.sdg | 09:Indústria, Inovação e Infraestruturas | |
| dc.contributor.author | Fernandes, Filipe | |
| dc.contributor.author | Fathipour, Zahra | |
| dc.contributor.author | Hadi, Morteza | |
| dc.contributor.author | Bayat, Omid | |
| dc.date.accessioned | 2026-02-26T12:22:28Z | |
| dc.date.available | 2026-02-26T12:22:28Z | |
| dc.date.issued | 2025-02-28 | |
| dc.description.abstract | nconel 625 alloy is widely utilized in the production of components for demanding industries. This study investigates the effect of ultrasonic nanocrystal surface modification (UNSM) on the surface properties and wear resistance of Inconel 625 alloy produced by selective laser melting (SLM). Specifically, it focused on analyzing the effect of UNSM on the microstructure, hardness, surface roughness, coefficient of friction and essentially wear resistance of the alloy. The results showed that the microstructure formed by SLM, characterized by relatively large melt pools, was modified by UNSM to a depth of approximately 10 to 15 microns, resulting in a new microstructure composed of deformed grains without changing the chemical composition. Surface hardness increased by over 63% after UNSM treatment. In addition, the surface roughness initially induced by the SLM process was reduced by more than 90%, resulting in a tenfold reduction in the coefficient of friction. Wear path analysis showed that while the abrasive wear mechanism of the alloy remained unchanged, the UNSM treated samples exhibited increased debris production and more frequent delamination due to reduced workability. The alterations in surface properties, including reduced crystallite size, increased lattice strain, grain refinement, and decreased surface area, have been identified as key contributors to the enhanced hardness and wear resistance of the alloy following UNSM treatment. | eng |
| dc.description.sponsorship | Filipe Fernandes acknowledges the: UIDB/00285/2020 and LA/P/0112/2020 projects, sponsored by FEDER Funds through Portugal 2020 (PT2020), by the Competitiveness and Internationalization Operational Program (COMPETE 2020), and national funds through the Portuguese Foundation for Science and Technology (FCT). | |
| dc.identifier.citation | Fathipour, Z., Hadi, M., Bayat, O., & Fernandes, F. (2025). Improvement of Surface Properties and Wear Resistance of Selective Laser Melting-Fabricated Inconel 625 Alloy by Ultrasonic Nanocrystal Surface Modification for Demanding Applications. Tribology Transactions, 68(2), 249–263. https://doi.org/10.1080/10402004.2025.2457970 | |
| dc.identifier.doi | 10.1080/10402004.2025.2457970 | |
| dc.identifier.issn | 1040-2004 | |
| dc.identifier.uri | http://hdl.handle.net/10400.22/31919 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | Taylor and Francis | |
| dc.relation | Centre for Mechanical Enginnering, Materials and Processes | |
| dc.relation.hasversion | https://www.tandfonline.com/doi/full/10.1080/10402004.2025.2457970#abstract | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Inconel 625 | |
| dc.subject | ultrasonic nanocrystal surface modification | |
| dc.subject | selective laser melting | |
| dc.subject | wear rate | |
| dc.subject | nickel-based superalloy | |
| dc.title | Improvement of Surface Properties and Wear Resistance of Selective Laser Melting-Fabricated Inconel 625 Alloy by Ultrasonic Nanocrystal Surface Modification for Demanding Applications | eng |
| dc.type | research article | |
| dspace.entity.type | Publication | |
| oaire.awardNumber | UIDB/00285/2020 | |
| oaire.awardTitle | Centre for Mechanical Enginnering, Materials and Processes | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00285%2F2020/PT | |
| oaire.citation.endPage | 263 | |
| oaire.citation.issue | 2 | |
| oaire.citation.startPage | 249 | |
| oaire.citation.title | Tribology Transactions | |
| oaire.citation.volume | 68 | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Fernandes | |
| person.givenName | Filipe | |
| person.identifier | 995468 | |
| person.identifier.ciencia-id | 2113-A18B-EEE8 | |
| person.identifier.orcid | 0000-0003-4035-3241 | |
| person.identifier.scopus-author-id | 55644767300 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
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