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Structure of the Amorphous-Crystalline Fe66Cu6B19Si5Nb4 Alloy Obtained by the Melt-Spinning Process
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| Zeitschriftentitel: | Archives of Metallurgy and Materials |
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| Personen und Körperschaften: | , , |
| In: | Archives of Metallurgy and Materials, 58, 2013, 2, S. 601-605 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
Polish Academy of Sciences Chancellery
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| Schlagwörter: |
| Zusammenfassung: | <jats:p>This paper presents structure investigations of the rapidly cooled Fe<jats:sub>66</jats:sub>Cu<jats:sub>6</jats:sub>B<jats:sub>19</jats:sub>Si<jats:sub>5</jats:sub>Nb<jats:sub>4 </jats:sub>alloy. A proper selection of chemical composition enabled in-situ formation of the amorphous-crystalline composite during the melt spinning process. Liquid phase separation into the Fe-rich and the Cu-rich phases was confirmed. The microstructures of alloy, melt-spun from 1723 and 1773 K, are composed of the Fe-rich amorphous matrix and Cu-rich spherical crystalline precipitates. For the higher melt-ejection temperature, no coarse precipitates could be observed. Amorphous nature of the Fe-rich matrix was confirmed by presence of a broad diffraction maximum on the X-ray diffraction patterns, a halo ring on the electron diffraction pattern as well as presence of exothermic effects, related to the crystallization of the Fe-rich amorphous matrix, in the differential scanning calorymetry. Beside presence of copper, revealing positive heat of mixing with iron, relatively large supercooled liquid region, was noticed.</jats:p> |
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| Umfang: | 601-605 |
| ISSN: |
1733-3490
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| DOI: | 10.2478/amm-2013-0044 |