Abstract The orientation relationships and interfaces between α′-Al13Cr4Si4 and the matrix in Al-Si-Cr-Mg alloy are characterized by HAADF-STEM electron microscopy. Multiple orientation relationships are found between α′-Al13Cr4Si4 and Al matrix in Al-Si-Cr-Mg and four of them are rarely common. By unraveling the atomic structure of dispersoids, the crystal model of α′-Al13Cr4Si4 is approved by the atomic-resolution for the first time. The interface we investigated proves that orientation relationships always rely on specific planes of Al matrix.

中文翻译：

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α'-Al13Cr4Si4与Al-Si-Cr-Mg合金基体的取向和界面

摘要 通过HAADF-STEM电子显微镜表征了α'-Al13Cr4Si4与Al-Si-Cr-Mg合金基体的取向关系和界面。在Al-Si-Cr-Mg中α'-Al13Cr4Si4和Al基体之间存在多种取向关系，其中四种很少见。通过解开弥散体的原子结构，α'-Al13Cr4Si4晶体模型首次获得原子分辨率的认可。我们研究的界面证明取向关系总是依赖于铝基体的特定平面。