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

Yan, Kun; Carr, David G.; Callaghan, Mark; Liss, Klaus-Dieter; Li, Huijun

doi:10.1016/j.scriptamat.2009.11.008

Cited by 57 publications

(27 citation statements)

References 12 publications

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“…In contrast to the rather limited correspondence between the experimental and simulated results achieved in earlier self-consistent studies [19,22,23], the present modelling work is the first to more successfully employ the VPSC model to simulate the macroscopic stress-strain response and the 4 texture evolution during the uniaxial tensile loading of a TWIP steel. It is also the first study to assess the contributions of perfect and/or partial slip, twinning and latent hardening to the texture evolution in TWIP steel.…”

Section: Introductionmentioning

confidence: 83%

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Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension

2013

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. (2013). Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension. Acta Materialia, 61 (7), 2671-2691.Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension AbstractA combination of electron back-scattering diffraction and X-ray diffraction was used to track the evolution of the microstructure and texture of a fully recrystallized Fe-24 Mn-3 Al-2 Si-1 Ni-0.06 C twinning-inducedplasticity steel during interrupted uniaxial tensile testing. Texture measurements returned the characteristic double fibre texture for face-centred cubic materials, with a relatively stronger 〈1 1 1〉 and a weaker 〈1 0 0〉 partial fibre parallel to the tensile axis. The interaction with the stable 〈1 1 1〉 oriented grains results in preferential plastic flow in the unstable 〈1 1 0〉 oriented grains. Consequently, the grains oriented along the 〈1 1 0〉 and 〈1 0 0〉 fibres record the highest and lowest values of intragranular local misorientation, respectively. The viscoplastic self-consistent model was used to simulate the macroscopic stress-strain response as well as track the evolution of bulk crystallographic texture by detailing the contributions of perfect and/or partial slip, twinning and latent hardening. The simulations revealed the dominant role of perfect slip and the limited volume effect of twinning on the texture development. The effects of initial orientation and grain interaction on the overall orientation stability during uniaxial tension showed that while the 〈1 0 0〉 fibre remains stable and does not affect the unstable orientations along the 〈1 1 0〉 fibre, the orientations along the stable 〈1 1 1〉 fibre strongly affect the unstable 〈1 1 0〉 orientations. on the overall orientation stability during uniaxial tension showed that while the 100  fibre remains stable and does not affect the unstable orientations along the 110  fibre, the orientations along the stable 111  fibre strongly affect the unstable 110  orientations.

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Section: Introductionmentioning

confidence: 83%

“…Thereafter, Yan et al [22] applied the VPSC model to predict the texture evolution after the tensile loading of Fe-25Mn-3Al-3Si TWIP steel such that the intensity of the experimental 111  fibre was atypically under predicted and ascribed to the over prediction of twinning activity.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension

2013

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“…[8][9][10] Prakash et al [11] applied the predominant twin reorientation [12] and Kalidindi [13] twinning schemes but obtained limited correspondence between the experimental and VPSC simulated textures during uniaxial tension. Thereafter, Yan et al [14] applied the VPSC model while simulating the tensile loading of Fe-25Mn-3Al-3Si TWIP steel but obtained an under-developed k111i fiber due to the over prediction of twinning activity. De Cooman et al [15] also simulated the tensile loading of a Fe-18Mn-1.5Al-0.6C TWIP steel by including slip and twinning in the VPSC model but obtained under and over predictions of the k111i and k100i fibers, respectively.…”

Section: Mj M à2mentioning

confidence: 99%

Self‐Consistent Modeling of Texture Evolution in TWIP Steel During Uniaxial Tension

Saleh

Pereloma

Gazder

2014

steel research int.

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X-ray diffraction was used to track the evolution of texture in a fully recrystallized Fe-24Mn-3Al-2Si-1Ni-0.06C TWinning Induced Plasticity steel subjected to uniaxial tensile testing. The bulk texture measurements returned the characteristic double fiber for fcc materials with a relatively stronger k111i fiber and a weaker k100i fiber parallel to the tensile axis. The Visco-Plastic Self-Consistent model was used to simulate the macroscopic stress-strain response as well as to track the evolution of the bulk crystallographic texture by detailing the contribution of slip and twinning when latent hardening effects are excluded or included. The simulations revealed the dominant role of slip and the limited volume effect of twinning on the overall development of the bulk texture. The correlation between the latent hardening effects and the employed grain interaction scheme is highlighted.

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“…On the other hand, the evolution of intergranular stresses during the uniaxial loading of Fe-25Mn-3Si-3Al has been characterised by in-situ synchrotron X-ray diffraction [17]. However, the contribution of these intergranular sources to the back stress can only be quantified by in-situ diffraction measurements during cyclic loading (for example -tension-compression, compression-tension or forward-reverse torsion tests).…”

Section: Introductionmentioning

confidence: 99%

On the evolution and modelling of lattice strains during the cyclic loading of TWIP steel

et al. 2013

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The evolution of lattice strains in fully annealed Fe-24Mn-3Al-2Si-1Ni-0.06C twinning-induced plasticity (TWIP) steel is investigated via in situ neutron diffraction during cyclic (tension-compression) loading between strain limits of ±1%. The pronounced Bauschinger effect observed upon load reversal is accounted for by a combination of the intergranular residual stresses and the intragranular sources of back stress, such as dislocation pile-ups at the intersection of stacking faults. The recently modified elasto-plastic self-consistent (EPSC) model which empirically accounts for both intergranular and intragranular back stresses has been successfully used to simulate the macroscopic stress-strain response and the evolution of the lattice strains. The EPSC model captures the experimentally observed tension-compression asymmetry as it accounts for the directionality of twinning as well as Schmid factor considerations. For the strain limits used in this study, the EPSC model also predicts that the lower flow stress on reverse shear loading reported in earlier Bauschinger-type experiments on TWIP steel is a geometrical or loading path effect. AbstractThe evolution of lattice strains in fully annealed Fe-24Mn-3Al-2Si-1Ni-0.06C TWinning Induced Plasticity (TWIP) steel is investigated via in-situ neutron diffraction during cyclic (tensioncompression) loading between strain limits of ±1%. The pronounced Bauschinger effect observed upon load reversal is accounted for by a combination of the intergranular residual stresses and the intragranular sources of back stress such as dislocation pile-ups at the intersection of stacking faults.The recently modified Elasto-Plastic Self-Consistent (EPSC) model which empirically accounts for both intergranular and intragranular back stresses has been successfully used to simulate the macroscopic stress-strain response and the evolution of the lattice strains. The EPSC model captures the experimentally observed tension-compression asymmetry as it accounts for the directionality of twinning as well as Schmid factor considerations. For the strain limits used in this study, the EPSC model also predicts that the lower flow stress on reverse shear loading reported in earlier Bauschinger-type experiments on TWIP steel is a geometrical or loading path effect.

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

Cited by 57 publications

References 12 publications

Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension

Microstructure and texture evolution in a twinning-induced-plasticity steel during uniaxial tension

Self‐Consistent Modeling of Texture Evolution in TWIP Steel During Uniaxial Tension

On the evolution and modelling of lattice strains during the cyclic loading of TWIP steel

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