Effect of laser surface texturing on Schmid factor and plastic deformation mechanisms on AISI 301LN steel
In this comprehensive study, the multifaceted impact of laser surface texturing (LST) on AISI 301LN stainless steel is explored. Changes in the microstructure, mechanical properties, and grain characteristics are examined. The dynamic relationship between Schmid factor evolution and plastic deformat...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 2023 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/395499 |
| Acesso em linha: | https://hdl.handle.net/2117/395499 https://dx.doi.org/10.3390/met13101789 |
| Access Level: | acceso abierto |
| Palavra-chave: | Lasers -- Industrial applications Stainless steel Schmid factor Laser surface texturing Metastable stainless steel TRIP Deformation mechanisms Làsers -- Aplicacions industrials Acer inoxidable Àrees temàtiques de la UPC::Enginyeria dels materials |
| Resumo: | In this comprehensive study, the multifaceted impact of laser surface texturing (LST) on AISI 301LN stainless steel is explored. Changes in the microstructure, mechanical properties, and grain characteristics are examined. The dynamic relationship between Schmid factor evolution and plastic deformation in this stainless steel alloy is unveiled through the analysis of grain statistics and individual grain scrutiny. It is revealed that LST initiates the formation of strain-induced a’-martensite, grain refinement, and substantial hardness enhancements. Notably, an a’-martensite crystalline size of 2.05 Å is induced by LST. Furthermore, a 12% increase in tensile strength is observed after LST along with an 11% boost in yield strength. However, reductions of 19% in elongation to fracture and 12% in the area reduction are experienced. |
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