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Investigation of the crystallography and morphology of the S′ precipitate in an Al(CuMg) alloy by HREM

 

作者: C.B. Zhang,   W. Sun,   H.Q. Ye,  

 

期刊: Philosophical Magazine Letters  （Taylor Available online 1989）
卷期: Volume 59, issue 6  

页码: 265-271

 

ISSN:0950-0839

 

年代: 1989

 

DOI:10.1080/09500838908206354

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The crystal lattice of the S′ phase in a 2024 aluminium alloy with 4·43 wt% Cu and 2·00 wt% Mg, and the precipitate–matrix orientation relationship are directly illustrated by the [100] lattice image of both the S′ and matrix phases. Two types of the precipitation morphology of the S′ phase, which correspond to homogeneous and preferential nucleation respectively, are also shown.

 

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