Deformation mechanisms of twinning-induced plasticity steels: in situ synchrotron characterization and modeling

Authors

Kun Yan, University of WollongongFollow
David G. Carr, Aust Nuclear Science and Technology Organisation
Mark D. Callaghan, University of WollongongFollow
Klaus-Dieter Liss, Australian Nuclear Science & Technology Organisation
Huijun Li, University of WollongongFollow

RIS ID

33764

Publication Details

Yan, K., Carr, D. G., Callaghan, M. D., Liss, K. & Li, H. (2010). Deformation mechanisms of twinning-induced plasticity steels: in situ synchrotron characterization and modeling. Scripta Materialia, 62 (5), 246-249.

Abstract

The plastic deformation behavior of twinning-induced plasticity steels of composition Fe–25Mn–3Si–3Al are investigated by means of in situ synchrotron high-energy X-ray diffraction and compared to self-consistent simulations. It is the first time the alternating interaction of {1 1 1}slip and {1 1 1}twinning have been directly observed in situ while undergoing uniaxial tension. The deformation texture is determined mainly by dislocation gliding, while deformation twinning impedes the reinforcement of texture.