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Microstructural Response of Pure Copper to Cryogenic Rolling (PREPRINT)

TLDR
In this paper, a high-resolution electron-back-scatter-diffraction (EBSD) technique was applied to quantify grain-structure development and texture evolution during/after cryogenic rolling of pure copper.
Abstract
: A high-resolution electron-back-scatter-diffraction (EBSD) technique was applied to quantify grain-structure development and texture evolution during/after cryogenic rolling of pure copper. Microstructure evolution was found to be a complex process involving mainly geometrical effects associated with strain and discontinuous recrystallization but also including limited twinning and grain subdivision. Recrystallization was deduced to be static in nature and probably occurred during static storage of the material at room temperature after cryogenic rolling. The texture contained a pronounced {110} brass component; this observation was interpreted in terms of the suppression of cross slip at cryogenic temperatures. In general, cryogenic rolling was found to be ineffective for the formation of a nanocrystalline (NC) structure in pure copper.

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Effect of ageing on microstructure and mechanical properties of bulk, cryorolled, and room temperature rolled Al 7075 alloy

TL;DR: In this article, the effect of ageing on mechanical properties and microstructural characteristics of a precipitation hardenable Al 7075 alloy subjected to rolling at liquid nitrogen temperature and room temperature is investigated.
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A high strength and high electrical conductivity Cu-Cr-Zr alloy fabricated by cryorolling and intermediate aging treatment

TL;DR: In this article, a two-stage cryorolling and an intermediate aging treatment was used to obtain a desired combination of tensile strength (690.13 MPa) and electrical conductivity (67% IACS).
Journal ArticleDOI

Development of ultrafine grained high strength age hardenable Al 7075 alloy by cryorolling

TL;DR: In this article, the Al 7XXX series alloys are processed at both cryogenic temperature and room temperature up to different rolling strains, with the objective of developing a processing strategy to obtain ultra-fine grained microstructure with enhanced mechanical properties in the alloy.
Journal ArticleDOI

Insight into the microstructural evolution during cryo-severe plastic deformation and post-deformation annealing of aluminum and its alloys

TL;DR: In this article, the authors investigated the microstructural development during severe plastic deformation (SPD) of aluminum and its alloys under cryogenic temperature and during the post-cryo-SPD annealing treatment.
References
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Journal ArticleDOI

High angle boundaries formed by grain subdivision mechanisms

TL;DR: In this article, the formation of deformation induced high angle boundaries is suggested based on grain subdivision processes which can lead to formation of different texture components within an original grain, and the distribution of their misorientations is estimated based on these mechanisms.
Journal ArticleDOI

Overview no. 76: Mechanism of deformation and development of rolling textures in polycrystalline f.c.c. metals—I. Description of rolling texture development in homogeneous CuZn alloys

TL;DR: In this article, the texture development of cold rolled copper and brass was investigated as a function of rolling reduction in great detail and the three-dimensional orientation distribution functions (ODFs) were determined by X-ray diffraction and analyzed and ghost-corrected with the help of Gauss model calculations.
Journal ArticleDOI

Microstructural evolution and nanostructure formation in copper during dynamic plastic deformation at cryogenic temperatures

TL;DR: In this article, the microstructural evolution and formation mechanism of nanostructures in bulk pure Cu samples induced by dynamic plastic deformation at high strain rates and cryogenic temperatures were investigated using transmission electron microscopic characterization.
Journal ArticleDOI

Developing stable fine–grain microstructures by large strain deformation

TL;DR: In this article, the main criterion for the formation of a sub-micron grain structure is the generation of a sufficiently large fraction (> 0.7) of high-angle grain boundary during the deformation process.
Journal Article

Developing stable fine-grain microstructures by large strain deformation - Discussion

TL;DR: In this article, the main criterion for the formation of a sub-micron grain structure is the generation of a sufficiently large fraction (> 0.7) of high-angle grain boundary during the deformation process.
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