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dc.contributor.authorAyenampudi, S.
dc.contributor.authorCelada-Casero, C.
dc.contributor.authorArechabaleta, Z.
dc.contributor.authorArribas, M.
dc.contributor.authorArlazarov, A.
dc.contributor.authorSietsma, J.
dc.contributor.authorSantofimia, M. J.
dc.date.accessioned2021-02-25T10:15:51Z
dc.date.available2021-02-25T10:15:51Z
dc.date.issued2021
dc.identifier.citationAyenampudi, S., Celada-Casero, C., Arechabaleta, Z. et al. Microstructural Impact of Si and Ni During High Temperature Quenching and Partitioning Process in Medium-Mn Steels. Metall Mater Trans A (2021). https://doi.org/10.1007/s11661-021-06144-5en
dc.identifier.issn1073-5623en
dc.identifier.urihttp://hdl.handle.net/11556/1083
dc.description.abstractAustenite stabilization through carbon partitioning from martensite into austenite is an essential aspect of the quenching and partitioning (Q&P) process. Substitutional alloying elements are often included in the chemical composition of Q&P steels to further control the microstructure development by inhibiting carbide precipitation (silicon) and further stabilize austenite (manganese and nickel). However, these elements can interfere in the microstructure development, especially when high partitioning temperatures are considered. In this study, the microstructural development during the Q&P process of four low-carbon, medium-manganese steels with varying contents of silicon and nickel is investigated. During partitioning at 400 °C, silicon hinders cementite precipitation in primary martensite thereby assisting carbon partitioning from martensite to austenite. During partitioning at temperatures of 500 °C and 600 °C, presence of nickel inhibits pearlite formation and promotes austenite reversion, respectively. It is observed that the stabilization of austenite is significantly enhanced through the addition of nickel by slowing down the kinetics of competitive reactions that are stimulated during the partitioning stage. Results of this study provide an understanding of the interplay among carbon, silicon and nickel during Q&P processing that will allow the development of new design strategies to tailor the microstructure of this family of alloys.en
dc.description.sponsorshipThis research work has been carried out in the framework of the HighQP project (Proposal Number: 709855), funded by the Research Fund for Coal and Steel (RFCS).en
dc.language.isoengen
dc.publisherSpringeren
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleMicrostructural Impact of Si and Ni During High Temperature Quenching and Partitioning Process in Medium-Mn Steelsen
dc.typearticleen
dc.identifier.doi10.1007/s11661-021-06144-5en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsMedium-Mn Steelsen
dc.identifier.essn1543-1940en
dc.journal.titleMetallurgical and Materials Transactions Aen


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