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Unanticipated drastic decline in pitting corrosion resistance of additively manufactured 316L stainless steel after high-temperature post-processing
journal contribution
posted on 2020-04-01, 00:00 authored by Majid Laleh, A Hughes, Wei XuWei Xu, Pavel CizekPavel Cizek, Mike Yongjun TanMike Yongjun Tan© 2019 Elsevier Ltd The pitting corrosion resistance of 316L stainless steel (316L SS) additively manufactured by selective laser melting (SLM) has been reported to be substantially higher than its commercial counterpart due to the elimination of MnS inclusions. Here we report that the pitting corrosion resistance of the SLM-produced 316L SS declines drastically after thermal post-processing above 1000 °C. This unanticipated drastic decline in pitting resistance is explained based on the formation of deleterious MnS inclusions in the SLM-produced 316L SS after high-temperature thermal post-processing. This finding may have wide implications for determining suitable post-processing and industry application conditions for SLM-produced 316L SS.
History
Journal
Corrosion ScienceVolume
165Article number
108412Pagination
1 - 8Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0010-938XLanguage
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalUsage metrics
Keywords
Selective laser meltingPost-processingInclusionPitting corrosionStainless steel 316LScience & TechnologyTechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringMaterials ScienceCRACK-GROWTH-BEHAVIOROXIDE INCLUSIONSSULFIDE INCLUSIONSHEAT-TREATMENTMNSMICROSTRUCTURENANOCOMPOSITESINITIATIONMECHANISMMETALSMechanical Engineering
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