Abstract
Peculiar deformation accompanied by band having 46% strain was observed in the [001] oriented Fe-30%Cr alloy single crystal. Specimen was again deformed after ageing at 473K for 30min. at the 23.5% strain. Second Luders band started from the opposite side of the chuck. From the surface observation of the side surface of the specimen, the propagation speed, width and the strain rate in the band were determined. The mobile dislocation density in the band was also estimated to be about 2×108cm/cm3. The effective and internal stress were determined during the straining in order to analyze the mechanism of deformation.
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