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Abstract
Nanometer-scale structures were examined for Al 92 V 3 Fe 3 Zr 2 ribbons rapidly solidified by a single roller melt-spinning, as a function of a circumferential velocity in the range between 10 and 50 m/s. Deformed scattering patterns along the direction of the ribbons are detected by a pinhole small-angle X-ray instrument for the ribbons rapidly solidified with the circumferential velocities higher than 20 m/s. The deformed patterns can be attributed to the rows of nearly spherical particles into which the elongated particles have disintegrated by shear flow caused by the melt spinning. Size of precipitates decreases with increasing the circumferential velocity, and some change in the precipitation mechanism is suggested to occur at a circumferential velocity of 30 m/s.
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