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Surface crystallization of Fe80B20metallic glass ribbons

Authors
Journal
Materials Science and Engineering A
0921-5093
Publisher
Elsevier
Publication Date
Volume
133
Identifiers
DOI: 10.1016/0921-5093(91)90150-l

Abstract

Abstract The surface crystallization of Fe 80B 20 metallic glass was studied using DSC, optical microscopy and TEM. It was shown that the contact surface layer with retarded crystallizatio occurs when a sufficiently high cooling rate is applied during the melt spinning process. The existence of the layer is due to the lack of quenched-in nuclei in this part of the ribbon and it is caused by the cooling rate distribution at the ribbon thickness. Differences in microstructure were found at the cross-section of the ribbon.

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