工业AlZnMgCu合金中Fe4Al13作为非均相的多重孪晶

Materials Science and Engineering Pub Date : 1988-04-01 DOI:10.1016/0025-5416(88)90272-8

Hua Mingjian, Li Chunzhi, Yan Minggao, Jin Yan

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引用次数: 0

摘要

用透射电镜研究了AlZnMgCu合金中的非均相。结果表明，该合金的主要组成相为Fe4Al13，其中存在多孪晶。孪生平面是(200)和(201)。相邻孪晶的取向关系可以等效地认为是围绕[010]旋转2π/10。记录了具有十倍对称的选定区域的衍射图样，并讨论了与准晶体的关系。

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The multiple twinning of Fe4Al13 as a heterogeneous phase in commercial AlZnMgCu alloys

The heterogeneous phase in commercial AlZnMgCu alloys has been studied using transmission electron microscopy. It is found that Fe₄Al₁₃ is the main constituent phase, in which multiple twins are frequently observed. Twinning planes are (200) and $(20 1)$ . The orientation relationship of neighbouring twins can be equivalently considered to rotate 2π/10 about [010]. A selected area diffraction pattern with tenfold symmetry has been recorded and is discussed in relation to quasi-crystals.

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Materials Science and Engineering

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