Shape of moving grain boundaries in Al-bicrystals
- RWTH, Aachen (Germany). Inst. fuer Metallkunde und Metallphysik
- Russian Academy of Science, Chernogolovka (Russian Federation). Inst. of Solid State Physics
It is common knowledge that grain boundary migration determines microstructure evolution and thus, affects the properties of polycrystals. The principal parameter which controls the motion of a grain boundary is the grain boundary mobility. In practically all relevant cases the motion of a straight grain boundary is the exception rather than the rule. That is why the shape of a moving grain boundary is of interest, and it will be shown that the grain boundary shape is a source of new, interesting and useful findings concerning grain boundary motion, in particular for the interaction of a moving grain boundary with mobile particles. The experimentally derived shape of a grain boundary quarter-loop (Masteller and Bauer, Recrystallization of Metallic Materials, Riederer Verlag, Stuttgart, 1978) in Al-bicrystals of different purity was compared with theoretical calculations in the Luecke-Detert approximation (Luecke and Detert, Acta Metallurgica, 1957, 5, 628).
- OSTI ID:
- 329083
- Journal Information:
- Acta Materialia, Journal Name: Acta Materialia Journal Issue: 3 Vol. 47; ISSN 1359-6454; ISSN ACMAFD
- Country of Publication:
- United States
- Language:
- English
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