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Deformation texture transition in brass: critical role of micro-scale shear bands
Journal article   Peer reviewed

Deformation texture transition in brass: critical role of micro-scale shear bands

E. El-Danaf, S.R. Kalidindi, R.D. Doherty and C. Necker
Acta materialia, v 48(10), pp 2665-2673
2000
DOI: https://doi.org/10.1016/S1359-6454(00)00050-1

Abstract

Copper alloys Crystal structure Deformation twinning Shear bands Texture
The transition in deformation textures between low stacking fault energy f.c.c. metals (e.g. brass textures) and the medium to high stacking fault energy f.c.c. metals (e.g. copper textures) is addressed. A detailed microscopy investigation was conducted in parallel with texture measurements on deformed samples of copper and 70/30 brass to different strain levels in three different deformation paths, namely, plane strain compression, simple compression, and simple shear. The objective of the study was to identify the specific trends in the transition between the brass textures and the copper textures that correlated with the onset of deformation twinning and those that correlated with the onset of micro-scale shear banding. It was found that several important transitions in the evolution of the deformation textures, especially in the rolled samples, correlated not with the onset of deformation twinning but with the onset of micro-scale shear banding. These results strongly suggest that the critical feature in texture transition is not twinning directly, but the shear banding promoted by the high strain hardening rates of low stacking fault energy f.c.c. metal.

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134 citations in Web of Science
146 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
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