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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 4    August 2001

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Evolution of recrystallization textures in
high voltage aluminum capacitor foils
LIU Chu-ming(刘楚明)1, ZHANG Xin-ming(张新明)1, ZHOU Hong-zhang(周鸿章)2,
CHEN Zhi-yong(陈志永)1, DENG Yun-lai(邓运来)1, ZHOU Zhuo-ping(周卓

1. Department of Materials Science and Engineering,
Central South University, Changsha 410083, P.R.China;
2. Northeast Light Alloy Co. Ltd., Harbin 150060, P.R.China

Abstract:The evolution of recrystallization textures in high voltage aluminum capacitor foils which are produced with a high level of cold reduction was tracked by analysis of microstructure and crystallographic texture. The results show that the deformation textures are mainly composed of S-orientation, Cu-orientation and a little Bs-orientation. During the low temperature stages of final annealing, the iron precipitates first along the sub-grain boundaries, and the Fe concentration in the matrix becomes low. Then, the cube grains nucleate preferably into the sub-grains. At high temperature stages, the cube nuclei can grow preferably because of their 40°〈111〉 orientation relationship to the S orientation, the main component of the rolling texture. Finally, the cube texture is sharply strong and the R orientation is very weak in the foils.

 

Key words: aluminum capacitor foils; deformation textures; recrystallization textures

ISSN 1672-7029
CN 43-1423/U

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