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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.42  No.8 (2001)  >  pp.1552-1560

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Nanometer-Scale Structure of Rapidly Solidified Al92V3Fe3Zr2 Alloy

Tomoaki Kamiyama1), Hisamichi Kimura1), Kenichiro Sasamori1) and Akihisa Inoue1)
1) Institute for Materials Research, Tohoku University

Nanometer-scale structures were examined for Al92V3Fe3Zr2 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.

small-angle X-ray scattering, nano-structure, melt-spinning, shear, aluminum-based amorphous alloy

Received: February 21, 2001
Accepted: March 28, 2001 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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