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On the origin of cube texture in copper

Journal Article · · Acta Metallurgica et Materialia; (United States)
 [1]; ;  [2];  [3]
  1. Univ. of Hong Kong (Hong Kong). Dept. of Mechanical Engineering
  2. Inst. fuer Metallkunde und Metallphysik, Aachen (Germany)
  3. Univ. of Birmingham (United Kingdom). School of Metallurgy and Materials
A crystallographic etch in which 111 planes are exposed in copper has been used to determine the orientation of the neighboring substructures surrounding cube oriented microbands in heavily cold rolled copper. These, after characterization into orientation groups, were compared with the neighborhoods of undeveloped cube oriented microbands in lightly annealed material in which almost all well developed recrystallized grains were of cube orientation. By inspection of the two sets of orientation neighborhoods it is demonstrated that only cube microbands surrounded by material with a [theta][degree] (111) orientation relationship provide cube nuclei. Thus the cube texture arises from competition between nuclei in a variety of orientation environments, the successful nuclei having environments into which they initially grow characterized by a [theta](111) relationship. The process is best described as micro-growth selection, in which the local texture determines the viability and competitive advantage of nuclei, while the global deformation texture (i.e. that determined by traditional diffraction methods) is that which is consumed by those nuclei, with the possibility of further growth selection as recrystallization proceeds.
OSTI ID:
6273606
Journal Information:
Acta Metallurgica et Materialia; (United States), Journal Name: Acta Metallurgica et Materialia; (United States) Vol. 41:6; ISSN 0956-7151; ISSN AMATEB
Country of Publication:
United States
Language:
English