Orientation-Dependent Developments in Misorientation and Residual Stress in Rolled Aluminum: The Defining Role of Dislocation Interactions

Lodh, Arijit; Tewary, Ujjal; Singh, Ram Pratap; Tak, Tawqeer Nasir; Prakash, Aditya; Alankar, Alankar; Guruprasad, P. J.; Samajdar, I.

doi:10.1007/s11661-018-4964-x

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…Marin and Dawson [37] appear to be the pioneer in modelling, through CPFEM, elasto-viscoplastic responses of metallic materials during large plastic deformations. Interestingly, Lodh et al [38] demonstrated that both CPFEM and DDD provided the same patterns of orientation-dependent residual stress developments. In summary, it appears that the residual stress evolution in metallic materials is largely governed by the developments in dislocation substructures.…”

Section: Discussion: Validating the Numerical Simulations And Beyondmentioning

confidence: 99%

Imposed thermal gradients and resultant residual stresses: Physical and numerical simulations

Mukherjee

Tewary

Kumar

et al. 2020

Materials Science and Technology

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In this study, physical simulations were carried out on High Strength Low Alloy (HSLA) steel specimens. Samples were heated above and below the austenite transformation temperature and then cooled at different rates. Thermal history and residual stress gradients were measured experimentally and simulated numerically. This involved finite element simulations, which solved the Fourier's heat conduction equation and also incorporated appropriate subroutines for phase transformations. The latter involved HETVAL, to quantify phase transformation, and USDFLD, to calculate the corresponding heat inputs. This manuscript not only established a similar pattern between the controlled experiments and the numerical simulations but also provided a quantitative perspective to residual stress gradients, as introduced by temperature gradients and by phase transformations, during thermomechanical processing.

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Section: Discussion: Validating the Numerical Simulations And Beyondmentioning

confidence: 99%

Imposed thermal gradients and resultant residual stresses: Physical and numerical simulations

Mukherjee

Tewary

Kumar

et al. 2020

Materials Science and Technology

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show abstract

“…A modern crystal plasticity model (for example, a full-field crystal plasticity finite element model) uses the overall stress-strain responses [15,[43][44][45][46]. The orientation dependence is introduced with dislocation-based latent hardening [46]. The latter is, however, ad-hoc.…”

Section: Discussionmentioning

confidence: 99%

Orientation-dependent solid solution strengthening in zirconium: a nanoindentation study

et al. 2019

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Orientation-dependent solid solution strengthening was explored through a combined microtexture plus nanoindentation study. Pure zirconium (6N purity crystal-bar Zr) and commercial Zircaloy-2 were investigated for comparison. Local mechanical properties were estimated through finite element (FE) simulations of the unloading part of the nanoindentation load-displacement response. Combinations of 'averaging' scheme and constitutive relationship were used to resolve uncertainty of FE-extracted mechanical properties. Comparing the two grades, non-basal oriented grains showed an overall hardening and increase in elastic modulus. In contrast, insignificant change was observed for basal (or near-basal) oriented grains. The strengthening of non-basal orientations appeared via elimination of the lowest hardness/stiffness values without a shift in the peak value. Such asymmetric development brought out the clear picture of orientation-dependent solid solution strengthening in zirconium.

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Snoek-Dominated Internal Friction Response in bcc Steel: Relating Experiments With a Multi-scale Atomistic Computational Framework

Manda

Kumar

Pal

et al. 2022

Metall Mater Trans A

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Orientation-Dependent Developments in Misorientation and Residual Stress in Rolled Aluminum: The Defining Role of Dislocation Interactions

Cited by 10 publications

References 31 publications

Imposed thermal gradients and resultant residual stresses: Physical and numerical simulations

Imposed thermal gradients and resultant residual stresses: Physical and numerical simulations

Orientation-dependent solid solution strengthening in zirconium: a nanoindentation study

Snoek-Dominated Internal Friction Response in bcc Steel: Relating Experiments With a Multi-scale Atomistic Computational Framework

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