The behaviour of δ ferrite during quenching in an industrial ferritic stainless steel containing 11% Cr

Béchir Chéhab, Yves Bréchet, Muriel Véron, Jean Christophe Glez, Jean Denis Mithieux

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

This study deals with the behaviour of δ ferrite during quenching, in an industrial ferritic stainless steel containing 11% Cr. The two-phase structure at high temperatures is believed to be responsible for fracture during hot-rolling. To better understand this phenomenon, solid state phase transformations occurring during quenching have been studied for various holding and starting temperatures. It is found that δ ferrite exhibits two different quenching behaviours: Type I behaviour: for temperatures higher than 1250°C δ→γ transformation is of the massive type and on quenching the δ phase transforms into austenite which is subsequently transformed into martensite. Type II behaviour: for temperatures below 1225°C the transformation becomes diffusional and slow so that the δ phase is retained in the bcc state after quenching.

Original languageEnglish
Pages761-770
Number of pages10
Publication statusPublished - 2005
Externally publishedYes
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2005 - Phoenix Arizona USA, Phoenix, United States of America
Duration: 29 May 20053 Jun 2005

Conference

ConferenceInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2005
Abbreviated titlePTM 2005
CountryUnited States of America
CityPhoenix
Period29/05/053/06/05

Keywords

  • Austenite
  • Martensite
  • Massive transformation
  • δ Ferrite

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