Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Experimental and Self-Consistent Modeling Study of De-twinning in a Twinning-Induced Plasticity Steel
AU - Saleh, Ahmed A.
AU - Wen, Wei
AU - Pereloma, Elena V.
AU - McCormack, Scott J.
AU - Tomé, Carlos N.
AU - Gazder, Azdiar A.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - The effect of compression–tension loading on the microstructure evolution in a fully annealed Fe–24Mn–3Al–2Si–1Ni–0.06C twinning-induced plasticity steel has been investigated. Electron back-scattering diffraction was used to track a region of interest at true strains of 0 (initial), − 0.09 (after forward compression loading), and 0.04 (after reverse tension loading). All deformation twins detected after forward compression loading were found to de-twin upon subsequent reverse tension loading, likely due to the reverse glide of partial dislocations bounding the twins. The reverse loading behavior, including the twinning and de-twinning processes, was successfully simulated using a recently modified dislocation-based hardening model embedded in the visco-plastic self-consistent polycrystal framework, taking into account the dislocation accumulation/annihilation, as well as the twin barrier and back-stress effects.
AB - The effect of compression–tension loading on the microstructure evolution in a fully annealed Fe–24Mn–3Al–2Si–1Ni–0.06C twinning-induced plasticity steel has been investigated. Electron back-scattering diffraction was used to track a region of interest at true strains of 0 (initial), − 0.09 (after forward compression loading), and 0.04 (after reverse tension loading). All deformation twins detected after forward compression loading were found to de-twin upon subsequent reverse tension loading, likely due to the reverse glide of partial dislocations bounding the twins. The reverse loading behavior, including the twinning and de-twinning processes, was successfully simulated using a recently modified dislocation-based hardening model embedded in the visco-plastic self-consistent polycrystal framework, taking into account the dislocation accumulation/annihilation, as well as the twin barrier and back-stress effects.
U2 - 10.1007/s11837-019-03374-2
DO - 10.1007/s11837-019-03374-2
M3 - Journal article
AN - SCOPUS:85063254097
VL - 71
SP - 1396
EP - 1403
JO - JOM
JF - JOM
SN - 1047-4838
IS - 4
ER -