Surface-induced crystallisation of melt-spun amorphous Fe-rich Fe-Zr alloys
Author:
- 1 January 1985
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 15 (1) , 257-262
Abstract
A fairly thin crystalline layer was proved to be formed on the free surface of amorphous Fe-rich Fe-Zr alloys during the melt-spinning process. This crystalline surface layer can be easily removed by polishing lightly with emery paper. X-ray diffraction results for melt-spun amorphous Fe100-xZrx alloys showed that the crystalline surface layer consists of BCC Fe for 83Zr for x=11. BCC Fe on the free surface of the amorphous Fe91Zr9 ribbon has a strong texture with its (100) plane parallel to the ribbon surface. The bulk crystallisation of amorphous Fe91Zr9 alloy is significantly affected by the preexisting surface crystallites; the crystallised ribbon shows a strong (100) texture, the same as that for the surface crystallites. The results of X-ray diffraction and differential thermal analysis for the amorphous Fe91Zr9 alloy showed that the surface crystallites decompose into alpha -Fe and Fe3Zr before the onset of bulk crystallisation.Keywords
This publication has 3 references indexed in Scilit:
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- Low-temperature specific-heat study of Fe-rich Fe-Zr amorphous alloysJournal of Physics F: Metal Physics, 1984
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