Phase transformation of austenite during isothermal holding of a high-performance high-manganese steel

Rafael A. Mesquita, Reinhold Schneider, Katharina Steineder, Enno Arenholz, Ludovic Samek

Research output: Chapter in Book/Report/Conference proceedingsConference contribution

Abstract

A new composition of high-manganese steel with high Mn and low Si steel was studied, evaluating the austenite stability after different heat treating conditions. In order to determine the phase transformations and austenite stability, dilatometry experiments were carried out, and the microstructure was characterized by light optical microscopy, x-ray diffraction, and transmission electron microscopy. For long holding times at 550°C the precipitation of lamellar cementite emerged from the microstructure. For very long treatments at this temperature, epsilon martensite was observed, as a result from the depletion of C by cementite formation and thus the reduction of the austenite stability.
Original languageEnglish
Title of host publicationTagungsband zur 4. Internationalen Konferenz über thermomechanisches Behandlen von Stählen
Publication statusPublished - 2012
Event4th International Conference on Thermomechanical Processing of Steels - Sheffield, United Kingdom
Duration: 10 Sep 201212 Sep 2012

Conference

Conference4th International Conference on Thermomechanical Processing of Steels
CountryUnited Kingdom
CitySheffield
Period10.09.201212.09.2012

Keywords

  • High-performance manganese steel with reduced manganese content
  • twinning induced plasticity
  • austenite phase transformation
  • transmission electron microscopy

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