Martensite ? austenite phase transformation kinetics in an ultrafine-grained metastable austenitic stainless steel

نویسندگان

  • S. Rajasekhara
  • P. J. Ferreira
چکیده

A generalized phase transformation kinetics model is used to understand the martensite to austenite transformation in a cold-rolled and annealed metastable AISI 301LN ultrafine-grained austenitic stainless steel. The model shows that the presence of interstitial nitrogen and heavy cold-rolling is important to promote fast transformation kinetics, through rapid nitrogen-diffusion and austenite nucleation at austenite/martensite phase boundaries. 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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تاریخ انتشار 2010