Effect of pre-straining and bake hardening on the microstructure of thermomechanically processed CMnSi TRIP steels with and without Nb and Mo additions

E. V. Pereloma, K. F. Russell, M. K. Miller, I. B. Timokhina

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Abstract

Transmission electron microscopy and atom probe tomography revealed a significant increase in the number density of Nb-Mo-Fe-C clusters and fine particles after 4% pre-straining and bake hardening of transformation-induced plasticity steel alloyed with Nb and Mo. Cottrell atmospheres were detected in the non-alloyed CMnSi steel both before and after pre-straining and bake hardening.

Original languageEnglish
Pages (from-to)1078-1081
Number of pages4
JournalScripta Materialia
Volume58
Issue number12
DOIs
Publication statusPublished - Jun 2008

Keywords

  • Bake hardening
  • Cottrell atmospheres
  • Precipitation
  • Three-dimensional atom probe
  • Transformation-induced plasticity steels

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