Abstract:The dynamic behavior of Ͻ112Ͼ-tilt grain boundaries in aluminium bicrystals under the influence of cyclic stresses at elevated temperatures is reviewed. Bicrystals, containing low-and high-angle grain boundaries within a wide range of misorientation angles, were deformed at several combinations of stress, temperature, and number of cycles. The grain-boundary (GB) displacement and the deformed structure of bicrystals were framed using standard optical microscopy. The grain orientations were measured using the e… Show more
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