Quenching and Partitioning of Multiphase Aluminum-Added Steels

Tuomo Nyyssönen, Olli Oja, Petri Jussila, Ari Saastamoinen, Mahesh Somani, Pasi Peura

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

The quenching and partitioning response following intercritical annealing was investigated for three lean TRIP-type High-Al steel compositions. Depending on the intercritical austenite fraction following annealing, the steels assumed either a ferrite/martensite/retained austenite microstructure or a multiphase structure with ferritic, bainitic and martensitic constituents along with retained austenite. The amount of retained austenite was found to correlate with the initial quench temperature and, depending on the intercritical annealing condition prior to initial quenching, with the uniform and ultimate elongations measured in tensile testing.
Original languageEnglish
Article number373
Number of pages17
JournalMetals
Volume9
Issue number3
DOIs
Publication statusPublished - 22 Mar 2019
Publication typeA1 Journal article-refereed

Keywords

  • steel
  • Martensite
  • Quenching and partitioning
  • dilatometry
  • multi-phase structures

Publication forum classification

  • Publication forum level 1

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