QPA of retained austenite in TRIP-aided cold rolled steels using neutron diffraction

E. J. Shin, B. S. Seong, C. H. Lee, S. C. Baik, M. Y. Huh

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

A novel quantitative phase analysis (QPA) based on the Rietveld profile refinement of neutron diffraction patterns and a newly developed quantitative texture analysis was examined for the determination of the weight fraction of retained austenite in TRIP steels after cold rolling or tensile deformation. Textures of both the bcc phase of ferrite and bainite and the fcc phase of retained austenite were successfully determined separately by means of neutron diffraction even in samples containing only a small percentage of austenite. The as-received TRIP steel displayed a typical rolling texture of both the bcc and fcc phases. The preferred orientation factors (POFs) extracted from the recalculated orientation distribution functions (ODFs) were applied to the QPA. Cold rolling or simple tension gave rise to the development of deformation textures in the bcc phases. However, the plastic deformation led to a weakening of the fcc texture. The transformation behavior of retained austenite during cold rolling and simple tension was analyzed by using the parameter of the effective strain.

Original languageEnglish
Pages (from-to)1383-1388
Number of pages6
JournalMaterials Science Forum
Volume408-412
Issue numberII
Publication statusPublished - 2002 Dec 1
EventProceedings of the 13th International Conference on Textures of Materials - Seoul, Korea, Republic of
Duration: 2002 Aug 262002 Aug 30

Keywords

  • Deformation Texture
  • Neutron Diffraction
  • Quantitative Phase Analysis QPA
  • Retained Austenite
  • TRIP Steels

ASJC Scopus subject areas

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

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  • Cite this

    Shin, E. J., Seong, B. S., Lee, C. H., Baik, S. C., & Huh, M. Y. (2002). QPA of retained austenite in TRIP-aided cold rolled steels using neutron diffraction. Materials Science Forum, 408-412(II), 1383-1388.