Nanometer-scale structures were examined for Al92V3Fe3Zr2 ribbons rapidly s
olidified by a single roller melt-spinning, as a function of a circumferent
ial velocity in the range between 10 and 50 m/s. Deformed scattering patter
ns along the direction of the ribbons are detected by a pinhole small-angle
X-ray instrument for the ribbons rapidly solidified with the circumferenti
al velocities higher than 20 m/s. The deformed patterns can be attributed t
o the rows of nearly spherical particles into which the elongated particles
have disintegrated by shear flow caused by the melt spinning. Size of prec
ipitates decreases with increasing the circumferential velocity, and some c
hange in the precipitation mechanism is suggested to occur at a circumferen
tial velocity of 30 m/s.