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Metallurgical and Materials Transactions A

, Volume 50, Issue 1, pp 35–41 | Cite as

Pearlite Transformation in a Deformed TRIP/TWIP Austenitic Steel

  • D. De Castro
  • J. Vivas
  • R. Rementeria
  • M. M. Aranda
  • J. A. Jimenez
  • C. CapdevilaEmail author
Communication
  • 134 Downloads

Abstract

The increasing population of defects in strained austenite not only increases the heterogeneous nucleation site density for pearlite transformation, but also increases the austenite free energy due to the strain. This fact leads to a reduction in the critical free energy for pearlite nucleation, which triggers pearlite formation compared with austenite transformation without straining. Besides, a significant refinement of the pearlite colony size due to hard impingement between neighboring colonies is achieved.

Notes

The authors acknowledge the financial supportby the Spanish Ministerio de Economia y Competitividad (MINECO) through the form of a Coordinate Project (MAT2016-80875-C3-1-R). The authors also acknowledge the financial support by the Comunidad de Madrid through DIMMAT-CM_S2013/MIT-2775 project.

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2018

Authors and Affiliations

  • D. De Castro
    • 1
  • J. Vivas
    • 1
  • R. Rementeria
    • 1
    • 2
  • M. M. Aranda
    • 1
  • J. A. Jimenez
    • 1
  • C. Capdevila
    • 1
    Email author
  1. 1.Centro Nacional de Investigaciones Metalúrgicas (CENIM)Consejo Superior Investigaciones Científicas (CSIC)MadridSpain
  2. 2.Additive Manufacturing - New FrontierArcelorMittal Global R&DAvilésSpain

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