Effect of the magnetic transition of austenite phase on austenite-to-epsilon martensitic transformation in Fe[sbnd]Mn binary alloys

Seon Min Choi, Jin Sung Hong, Jae Hoon Nam, Wontae Cho, Dong Woo Suh, Young Kook Lee

Research output: Contribution to journalArticle

Abstract

The effect of the magnetic transition of γ austenite phase on γ → ε martensitic transformation in Fe[sbnd]Mn binary alloys was investigated to calm a longstanding controversy over whether or not γ → ε martensitic transformation is terminated at the Néel temperature of γ phase (TN γ), where the paramagnetic-to-antiferromagnetic transition occurs during cooling. Literature review on both martensite start (Ms) temperature and TN γ, experiments, and thermodynamic calculation clearly revealed that the γ → ε martensitic transformation in Fe[sbnd]Mn binary alloys is not terminated at TN γ, but suppressed at temperatures below TN γ due to the high stability of antiferromagnetic γ phase.

Original languageEnglish
Article number110279
JournalMaterials Characterization
Volume163
DOIs
Publication statusPublished - 2020 May

Bibliographical note

Funding Information:
This work was supported by POSCO Steel & Green Science ( 4.0017259 ) and Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) ( P0002019 , The Competency Development Program for Industry Specialist). Authors are also thankful to Dr. Joong-Hwan Jun at Korea Institute of Industrial Technology for fruitful discussion.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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