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The interfacial atomic structure and misfits of Ω precipitates formed in the face-centered cubic Al in the Al–Cu–Mg–Ag alloy have been determined by combining scanning transmission electron microscopy (STEM) Z-contrast imaging with chemical analysis and ab initio density functional theory (DFT) calculations. Precipitates of several thicknesses formed after heat treatment at 250°C, starting from 0...
Oxides formed during the dew-point control process were investigated in the Fe–C–Mn–Si–Al–Cu alloy steel. Al 2 O 3 , MnAl 2 O 4 , AlN and multi-layered Al–O/Mn–Si–O oxides were identified. Alloyed aluminum formed Al–O oxide to block incoming oxygen from the surface. The cored structure of Al–O and Mn–Si–O oxides revealed that the oxide formation was partially governed...
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