Effect of Mn segregation on the microstructure development of quenching and partitioning (Q&P) steel

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Microstructural development during the Q&P process of a 0.3C-1.6Si-3.5Mn (wt. %) steel with an inhomogeneous chemical composition is studied by applying local EPMA and optical microscopy techniques. During the initial Q&P quenching, the fraction of formed martensite is higher in the Mn/C-poor regions than Mn/C-rich regions. Due to the lower fraction of M1, austenite in the Mn/C/Si-rich regions has lower probability to receive sufficient carbon than austenite in the Mn/C/Si-poor regions. Consequently, during the final quench higher fraction of M2 is formed in the Mn/C/Si-rich than in the Mn/C/Si-poor regions.

Original languageEnglish
Title of host publicationPTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
EditorsL.-Q. Chen, M. Militzer, G. Botton et al
PublisherInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Pages1155-1156
ISBN (Electronic)9780692437360
Publication statusPublished - 2015
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada
Duration: 28 Jun 20153 Jul 2015

Conference

ConferenceInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
Abbreviated titlePTM 2015
CountryCanada
CityWhistler
Period28/06/153/07/15

Keywords

  • Mcrostructural banding
  • Quenching and partitioning
  • Segregation

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