Sensitization of AISI 302 stainless steel during low-power laser forming

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dc.contributor.authorWalczak, M.
dc.contributor.authorRamos Grez, J.
dc.contributor.authorCelentano, D.
dc.contributor.authorLima, E. B. F.
dc.date.accessioned2024-01-10T12:08:29Z
dc.date.available2024-01-10T12:08:29Z
dc.date.issued2010
dc.description.abstractLow-power laser forming by raster scanning is a promising technology for shaping thin sheets in a non-contact manner, using a laser beam scanned over the surface. In this work, the change of material microstructure and the related corrosion behavior are investigated in the context of local temperature evolution during the scanning action. Graphite coated AISI 302 stainless steel coupons have been bent to different angles using a 60 W CO2 laser and the resulting cyclic polarization behavior in sulfuric acid was measured. The so revealed sensitization of the material is discussed on the basis of microstructural changes caused by temperature-induced phase transformations. The total times of permanence at temperatures favoring specific transformations were obtained by numerical simulation of the process. It was found that even when no surface melting takes place the recurrent rise of temperature within the material is sufficient to sensitize the non-irradiated side. This effect might be a limiting factor in applications of laser formed AISI 302 in corrosive environments. (c) 2010 Elsevier Ltd. All rights reserved.
dc.description.funderChilean Council of Research and Technology, CONICYT
dc.description.funderDepartment of Research and Development of the Pontificia Universidad Catolica de Chile, VRAID
dc.fechaingreso.objetodigital03-04-2024
dc.format.extent9 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.optlaseng.2010.03.014
dc.identifier.eissn1873-0302
dc.identifier.issn0143-8166
dc.identifier.urihttps://doi.org/10.1016/j.optlaseng.2010.03.014
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76398
dc.identifier.wosidWOS:000279537800013
dc.information.autorucIngeniería;Celentano D;S/I;1005007
dc.information.autorucIngeniería;Ramos-Grez J;S/I;81538
dc.information.autorucIngeniería;Walczak M;S/I;1007559
dc.issue.numero9
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final914
dc.pagina.inicio906
dc.publisherELSEVIER SCI LTD
dc.revistaOPTICS AND LASERS IN ENGINEERING
dc.rightsacceso restringido
dc.subjectLaser forming
dc.subjectLaser bending
dc.subjectSensitization
dc.subjectNumerical simulation
dc.subjectStainless steel
dc.subjectRaster scan
dc.subjectCORROSION BEHAVIOR
dc.subjectPRECIPITATION
dc.subjectPERFORMANCE
dc.titleSensitization of AISI 302 stainless steel during low-power laser forming
dc.typeartículo
dc.volumen48
sipa.codpersvinculados1005007
sipa.codpersvinculados81538
sipa.codpersvinculados1007559
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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