Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications

Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2024

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Autor principal: Moreno Gherke, Oliver
Otros Autores: Schneider, Johannes
Formato: Tesis de maestría
Lenguaje:Inglés
Publicado: Instituto Tecnológico de Buenos Aires (ITBA) 2026
Materias:
LASER SURFACE TEXTURING, LASER SURFACE REMELTING, TRIBOLOGY, AUSTENITIC STAINLESS STEEL 304
TEXTURIZADO LÁSER DE SUPERFICIES, REMELTIDO LÁSER DE SUPERFICIES, TRIBOLOGÍA, ACERO INOXIDABLE AUSTENÍTICO 304
Acceso en línea:https://hdl.handle.net/20.500.14769/5288
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-20.500.14769-5288
record_format dspace
spelling I32-R138-20.500.14769-52882026-03-21T07:41:14Z Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications Moreno Gherke, Oliver Schneider, Johannes LASER SURFACE TEXTURING, LASER SURFACE REMELTING, TRIBOLOGY, AUSTENITIC STAINLESS STEEL 304 TEXTURIZADO LÁSER DE SUPERFICIES, REMELTIDO LÁSER DE SUPERFICIES, TRIBOLOGÍA, ACERO INOXIDABLE AUSTENÍTICO 304 Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2024 "In the global effort to reduce greenhouse gas emissions and enhance energy efficiency, tribological optimization presents a promising solution. With this goal in mind, this study investigated the influence of combining laser surface texturing with reactive laser surface remelting on the tribological behaviour of austenitic stainless steel 304 (V2A). V2A pins were subjected to a two-step laser treatment process consisting of a modification in atmosphere, followed by smoothing in Argon. This treatment created a remelted surface layer with distinct linear textures. Three different textured patterns were generated this way. Lubricated, unidirectional, pin on disc sliding tests were conducted on the laser-treated specimens across a range of speeds to evaluate behaviour under various lubrication regimes. The impact of unintended material acquisition at the edges of the pins from the laser treatment was also investigated through three separate test series. Untreated V2A pins served as a reference point for comparison in each series. Analysis included generating Stribeck curves from friction data and examining the surfaces using optical, topographical, and electron microscopy. Results showed significantly reduced wear in all laser-treated samples compared to untreated references, primarily due to incorporation of oxygen during laser treatment, mitigating wear mechanisms such as adhesion. However, surface area also played a crucial role, with untreated samples performing better at high sliding speeds due to their larger real contact area and easier transition to full-film lubrication. Furthermore, the presence of an elevated edge significantly impacted friction behaviour, leading to consistently low friction with minimal speed dependence, attributed to the reduced and geometrically favourable contact area created by the edge." 2026-03-20T17:20:32Z 2026-03-20T17:20:32Z 2024-09-06 Tesis de maestría https://hdl.handle.net/20.500.14769/5288 en application/pdf Instituto Tecnológico de Buenos Aires (ITBA)
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic LASER SURFACE TEXTURING, LASER SURFACE REMELTING, TRIBOLOGY, AUSTENITIC STAINLESS STEEL 304
TEXTURIZADO LÁSER DE SUPERFICIES, REMELTIDO LÁSER DE SUPERFICIES, TRIBOLOGÍA, ACERO INOXIDABLE AUSTENÍTICO 304
spellingShingle LASER SURFACE TEXTURING, LASER SURFACE REMELTING, TRIBOLOGY, AUSTENITIC STAINLESS STEEL 304
TEXTURIZADO LÁSER DE SUPERFICIES, REMELTIDO LÁSER DE SUPERFICIES, TRIBOLOGÍA, ACERO INOXIDABLE AUSTENÍTICO 304
Moreno Gherke, Oliver
Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
topic_facet LASER SURFACE TEXTURING, LASER SURFACE REMELTING, TRIBOLOGY, AUSTENITIC STAINLESS STEEL 304
TEXTURIZADO LÁSER DE SUPERFICIES, REMELTIDO LÁSER DE SUPERFICIES, TRIBOLOGÍA, ACERO INOXIDABLE AUSTENÍTICO 304
description Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires, Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2024
author2 Schneider, Johannes
author_facet Schneider, Johannes
Moreno Gherke, Oliver
format Tesis de maestría
author Moreno Gherke, Oliver
author_sort Moreno Gherke, Oliver
title Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
title_short Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
title_full Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
title_fullStr Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
title_full_unstemmed Combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
title_sort combined laser surface modification and texturing of austenitic stainless steel 304 for tribological applications
publisher Instituto Tecnológico de Buenos Aires (ITBA)
publishDate 2026
url https://hdl.handle.net/20.500.14769/5288
work_keys_str_mv AT morenogherkeoliver combinedlasersurfacemodificationandtexturingofausteniticstainlesssteel304fortribologicalapplications
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