Role of stacking fault energy on texture evolution revisited

Madhavan, R and Kalsar, R and Ray, RK and Suwas, S (2015) Role of stacking fault energy on texture evolution revisited. In: 17TH INTERNATIONAL CONFERENCE ON TEXTURES OF MATERIALS (ICOTOM 17), AUG 24-29, 2014, Dresden, GERMANY.

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Abstract

Three materials, pure aluminium, Al-4 wt.% Mg, alpha-brass have been chosen to understand the evolution of texture and microstructure during rolling. Pure Al develops a strong copper-type rolling texture and the deformation is entirely slip dominated. In Al-4Mg alloy, texture is copper-type throughout the deformation. The advent of Cu-type shear bands in the later stages of deformation has a negligible effect on the final texture. alpha-brass shows a characteristic brass-type texture from the early stages of rolling. Extensive twinning in the intermediate stages of deformation (epsilon(t) similar to 0.5) causes significant texture reorientation towards alpha-fiber. Beyond 40% reduction, deformation is dominated by Bs-type shear bands, and the banding coincides with the evolution of <111>parallel to ND components. The crystallites within the bands preferentially show <110>parallel to ND components. The absence of the Cu component throughout the deformation process indicates that, for the evolution of brass-type texture, the presence of Cu component is not a necessary condition. The final rolling texture is a synergistic effect of deformation twinning and shear banding.

Item Type:	Conference Proceedings
Series.:	IOP Conference Series-Materials Science and Engineering
Publisher:	IOP PUBLISHING LTD
Additional Information:	Copy right for this article belongs to the IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	22 Jun 2015 06:27
Last Modified:	22 Jun 2015 06:27
URI:	http://eprints.iisc.ac.in/id/eprint/51738

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