Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 7    No. 1    March 1997

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ROLES OF ORIENTATION RELATIONSHIP AND RECRYSTALLIZATION IN SUPERPLASTICITY OF SiCw/6061Al COMPOSITE
Gu Wanli; Peng Huaxin; Liu Zongrong; Wang Dezun; Yao Zhongkai

School of Materials Science and Engineering; Harbin Institute of Technology; Harbin 150001

Abstract:The orientation relationship between different aluminium grains as well as that between the aluminium and the whisker during the superplastic deformation have been studied. In addition, the relation between recrystallization and orientation were examined. The results showed that during the superplastic deformation the orientation relationship between different aluminium grains and that between the aluminium and the whisker were unstable. There was also no definite orientation between the recrystal grains emerging in the process of superplastic deformation and the whisker. Only the recrystal grain produced in the end of deformation could keep definite orientation with the whisker. The recrystallization induced by superplastic deformation could coordinate the sliding of grain boundaries and the interfaces.

 

Key words: SiCw/6061Al composite superplasticity orientation recrystallization

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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