Twinning models in self-consistent texture simulations of TWIP steels

Aruna Prakash, Thomas Hochrainer, Eduard Reisacher, Hermann Riedel

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The high work hardening rate and ductility of high manganese austenitic steels is mainly attributed to the strong twinning induced plasticity (TWIP) effect found in the material. With a low stacking fault energy, mechanical twinning acts as a competitive mechanism to the more common dislocation glide. In order to understand the micromechanical behaviour of such steels, especially with respect to texture and anisotropy, constitutive models for twinning which account for the TWIP effect both in orientation changes and plastic behaviour are required. Using a self-consistent texture model, we evaluate two twin modelling approaches in view of prediction of crystallographic texture. Tension experiments were carried out on a rolled TWIP sheet and the textures compared with the simulated results. The evolution of twin volume fractions from the two models is also evaluated.

Original languageEnglish
Pages (from-to)645-652
Number of pages8
JournalSteel research international
Volume79
Issue number8
DOIs
Publication statusPublished - Aug 2008

Fingerprint

Steel
Twinning
twinning
plastic properties
Plasticity
textures
Textures
steels
simulation
mechanical twinning
stacking fault energy
work hardening
ductility
Austenitic steel
Stacking faults
manganese
Manganese
Constitutive models
plastics
Strain hardening

Keywords

  • Kalidindi twinning model
  • PTR scheme
  • Texture
  • Twinning induced plasticity
  • TWIP steels
  • VPSC

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Twinning models in self-consistent texture simulations of TWIP steels. / Prakash, Aruna; Hochrainer, Thomas; Reisacher, Eduard; Riedel, Hermann.

In: Steel research international, Vol. 79, No. 8, 08.2008, p. 645-652.

Research output: Contribution to journalArticleResearchpeer-review

Prakash, Aruna ; Hochrainer, Thomas ; Reisacher, Eduard ; Riedel, Hermann. / Twinning models in self-consistent texture simulations of TWIP steels. In: Steel research international. 2008 ; Vol. 79, No. 8. pp. 645-652.
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