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Electrochemical studies on the effect of residual stress on the corrosion of 316L manufactured by selective laser melting
journal contributionposted on 2020-03-01, 00:00 authored by V Cruz, Qi Chao, N Birbilis, Daniel FabijanicDaniel Fabijanic, Peter HodgsonPeter Hodgson, S Thomas
© 2019 Elsevier Ltd Selective Laser Melting (SLM) and various subsequent stress-relieving treatments were used to obtain 316 L specimens with compressive residual stresses, varying from 15 to 250 MPa. This enabled a study on the effect of residual stress on corrosion of 316 L using electrochemical methods, which is relevant for durability of additively manufactured materials. Overall, compressive stresses in SLM 316 L result in a measurable increase in the pitting potential, accompanied by a decrease in the passive film currents and donor densities. It is proposed that compressive stresses lower the film growth and repassivation kinetics but slightly enhances the pitting resistance of SLM 316 L.
Pagination1 - 9
LocationAmsterdam, The Netherlands
Publication classificationC1 Refereed article in a scholarly journal
Stainless steelSelective laser meltingResidual stressPitting corrosionDonor densityRepassivationScience & TechnologyTechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringMaterials SciencePOINT-DEFECT MODELSTAINLESS-STEELPASSIVE FILMSSEMICONDUCTING PROPERTIESPIPELINE STEELSBEHAVIORRESISTANCEMICROSTRUCTUREENVIRONMENTCRACKINGMechanical Engineering