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The purpose of this paper has been description for the periodic structures of high angle tilt grain boundaries in aluminum by the dislocation model that may make impossible to explain various related ...behaviour of grain boundaries. We have compared the dislocation arrays predicted by O-lattice theory to that observed by HRTEM (High Resolution Transmission Electron Microscopy). Here, the observed boundaries are (115)σ27, (112)σ3, (111)σ3, (221)σ9 symmetric tilt boundaries and (111)σ9 asymmetric tilt boundary of aluminum. For all boundaries observed, the periodicity of dislocation array was good agreed with prediction by O-lattice theory.続きを見る
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Mendeley出力
