A re-evaluation of The micromechanics of twinning in a TWIP steel

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:649

Article

Saleh, Ahmed A.¹  Gazder, Azdiar A.² 

[1] Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia

[2] Univ Wollongong, Electron Microscopy Ctr, Wollongong, NSW 2500, Australia

关键词: TWIP;    Synchrotron X-ray diffraction;    EPSC;    Lattice strains;    Diffraction elastic constants;    Texture;   

DOI  :  10.1016/j.msea.2015.09.121

来源: Elsevier

【 摘 要 】

This study is a re-evaluation of the micromechanics of twinning in an Fe-15Mn-2Al-2Si-0.7C twinning induced plasticity (TWIP) steel first published by Rahman et al. (Mater. Sci. Eng. A 635 (2015) pp. 133-142). The original study comprised a combination of experimental results from uniaxial tensile loading coupled with in-situ synchrotron X-ray diffraction and elasto-plastic self-consistent modelling. This paper re-models the original in-situ tensile loading experiment and re-evaluates the concept of twinning (occurring) before macroscopic plastic deformation (begins) proposed in the original study. Here we provide a further discussion on the initiation and relative extent of deformation twinning and the evolution of crystallographic textures in TWIP steels. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free