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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 9    No. 4    December 1999

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Textural inspection of recrystallization process under bimodal particle distribution in pure Al-Mn alloy
Yang Ping

1.Institut fur Metallkunde und MetallPhysik der RWTH Aachen Kopernikusstr. 14, D-52056, Aachen, Germany
2.Department of Materials Science and Engineering,University of Science and Technology Beijing, Beijing 100083, P. R. China

Abstract:Recrystallization in a pure Al-1. 3 % Mn alloy containing large undeformable particles was investigated at low annealing temperature with concurrent precipitation and emphasis was put on its orientational aspect. Results revealed significant changes in microstructure and microtexture due to an inhomogeneous precipitation as compared with those at high annealing temperatures. Despite the easy nucleation at large particles,precipitation substantially suppressed the growth of grains formed there and the texture was mainly influenced by the grains formed at grain boundaries.

 

Key words: recrystallization; precipitation; Al-Mn alloys

ISSN 1672-7029
CN 43-1423/U

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