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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 2    April 2001

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Effect of trace yttrium on cube texture of high
purity aluminum foils
LIU Chu-ming(刘楚明), ZHANG Xin-ming(张新明), CHEN Zhi-yong(陈志永),
JIANG Hong-hui(蒋红辉), ZHOU Zhuo-ping(周卓平)

Department of Materials Science and Engineering,
Central South University, Changsha 410083, P.R. China

Abstract:The effect of trace yttrium on cube texture of high-purity aluminum foils has been investigated by means of orientation distribution functions (ODFs). The results show that a small addition of yttrium to high-purity aluminum brings about a considerable increment of the cube texture, and it reduces the content of R texture. The rare earth yttrium may combine with the other impurities to form the metallic compounds, such as FeYAl8, Fe6YAl6, Fe4YAl8 and Si2YAl2. When the precipitation of these particles in the matrix is nearly completed and the Fe concentration in the matrix becomes low, the cube texture can develop well and the  R texture can be suppressed.

 

Key words: high-purity aluminium; rare earth; cube texture; deformation texture

ISSN 1672-7029
CN 43-1423/U

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