Texture evolution during cross rolling and annealing of high-purity nickel

Bhattacharjee, P P and Joshi, M and Chaudhary, V P and Gatti, J R and Zaid, M (2013) Texture evolution during cross rolling and annealing of high-purity nickel. Metallurgical and Materials Transactions A, 44 (6). pp. 2707-2716. ISSN 1073-5623

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Evolution of texture during cross rolling and subsequent annealing was studied in high-purity nickel. For this purpose nickel samples were subjected to multipass cross rolling up to 90 pct reduction in thickness followed by annealing at different temperatures ranging between 673 K and 1073 K (400 C and 800 C). Cross rolling was carried out by rotating the samples about the normal direction (ND) by 90 deg interchanging the rolling direction and transverse direction (TD) between each consecutive pass. The development of microstructure and texture was characterized using X-ray and electron backscattered diffraction (EBSD) techniques. The deformation texture was characterized by the presence of strong brass ({110}〈;112〉) and ND-rotated brass ({011} 〈;2113̄13〉)) orientations. Upon annealing at 673 K (400 C), ND||[111] fiber could be observed in the microtexture which originated from the twin formation of the recrystallized TD-rotated cube ({027} 〈;07̄2〉) grains. The fiber was weakened after annealing at 1073 K (800 C) because of the decreased propensity for twin formation, and the microtexture was found to be weak and diffused. EBSD studies on early recrystallization stages indicated the absence of preferential nucleation of cube grains being in agreement with a weak cube texture formation in annealed cross-rolled high-purity nickel

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IITH Creators:
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Item Type: Article
Uncontrolled Keywords: Deformation texture; Electron back-scattered diffraction; Micro-texture; Normal direction; Rolling direction; Texture evolutions; Transverse directions; Twin formation
Subjects: Materials Engineering > Materials engineering
Divisions: Department of Material Science Engineering
Depositing User: Team Library
Date Deposited: 29 Nov 2014 09:50
Last Modified: 29 Nov 2014 09:50
URI: http://raiith.iith.ac.in/id/eprint/1065
Publisher URL: http://dx.doi.org/10.1007/s11661-013-1617-y
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