Nanometer-scale structure of rapidly solidified Al92V3Fe3Zr2 alloy

Citation
T. Kamiyama et al., Nanometer-scale structure of rapidly solidified Al92V3Fe3Zr2 alloy, MATER TRANS, 42(8), 2001, pp. 1552-1560
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS TRANSACTIONS
ISSN journal
1345-9678 → ACNP
Volume
42
Issue
8
Year of publication
2001
Pages
1552 - 1560
Database
ISI
SICI code
1345-9678(200108)42:8<1552:NSORSA>2.0.ZU;2-8
Abstract
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.