Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys
The alloys with different compositions in the Al-rich corner of the Al-Co-Y ternary system were prepared by conventional casting and further processed by melt-spinning technique. The microstructure and the thermal behavior of the alloys were analyzed by means of X-ray diffraction (XRD), scanning ele...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/163537 |
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| author | B. Avar M. Gogebakan M. Tarakci Y. Gencer S. Kerli |
| author_facet | B. Avar M. Gogebakan M. Tarakci Y. Gencer S. Kerli |
| author_sort | B. Avar |
| collection | DOAJ |
| description | The alloys with different compositions in the Al-rich corner of the Al-Co-Y ternary system were prepared by conventional casting and further processed by melt-spinning technique. The microstructure and the thermal behavior of the alloys were analyzed by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and differential thermal analysis (DTA). It was found that only rapidly solidified Al85Co7Y8 alloy exhibited the best glass forming ability (GFA) and a fully amorphous structure. Besides, Al85Co13Y2 and Al85Co2Y13 alloy ribbons were fully crystalline, whereas Al85Co10Y5 and Al85Co5Y10 alloy ribbons consisted of some crystalline phases within an amorphous matrix. The SEM results showed the same trend that the crystalline phase fraction decreases with the approaching into best glass former. From DSC results, only Al85Co7Y8 amorphous alloy exhibited a glass transition temperature (Tg) at 569 K, and its supercooled liquid region (ΔTx=Tx−Tg) was found to be 17 K. Moreover, other calculated GFA parameters for this alloy system were also discussed. |
| format | Article |
| id | doaj-art-f07b38e0153e4619a06ef7c0167d614f |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f07b38e0153e4619a06ef7c0167d614f2025-02-03T01:30:39ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422013-01-01201310.1155/2013/163537163537Microstructural Investigations of Rapidly Solidified Al-Co-Y AlloysB. Avar0M. Gogebakan1M. Tarakci2Y. Gencer3S. Kerli4Department of Metallurgical Engineering, Bulent Ecevit University, Incivez, 67100 Zonguldak, TurkeyDepartment of Physics, Faculty of Arts and Sciences, Kahramanmaras Sutcu Imam University, 46100 Kahramanmaras, TurkeyDepartment of Materials Science and Engineering, Gebze Institute of Technology, Gebze, 41400 Kocaeli, TurkeyDepartment of Materials Science and Engineering, Gebze Institute of Technology, Gebze, 41400 Kocaeli, TurkeyDepartment of Physics, Faculty of Arts and Sciences, Kahramanmaras Sutcu Imam University, 46100 Kahramanmaras, TurkeyThe alloys with different compositions in the Al-rich corner of the Al-Co-Y ternary system were prepared by conventional casting and further processed by melt-spinning technique. The microstructure and the thermal behavior of the alloys were analyzed by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and differential thermal analysis (DTA). It was found that only rapidly solidified Al85Co7Y8 alloy exhibited the best glass forming ability (GFA) and a fully amorphous structure. Besides, Al85Co13Y2 and Al85Co2Y13 alloy ribbons were fully crystalline, whereas Al85Co10Y5 and Al85Co5Y10 alloy ribbons consisted of some crystalline phases within an amorphous matrix. The SEM results showed the same trend that the crystalline phase fraction decreases with the approaching into best glass former. From DSC results, only Al85Co7Y8 amorphous alloy exhibited a glass transition temperature (Tg) at 569 K, and its supercooled liquid region (ΔTx=Tx−Tg) was found to be 17 K. Moreover, other calculated GFA parameters for this alloy system were also discussed.http://dx.doi.org/10.1155/2013/163537 |
| spellingShingle | B. Avar M. Gogebakan M. Tarakci Y. Gencer S. Kerli Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys Advances in Materials Science and Engineering |
| title | Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys |
| title_full | Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys |
| title_fullStr | Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys |
| title_full_unstemmed | Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys |
| title_short | Microstructural Investigations of Rapidly Solidified Al-Co-Y Alloys |
| title_sort | microstructural investigations of rapidly solidified al co y alloys |
| url | http://dx.doi.org/10.1155/2013/163537 |
| work_keys_str_mv | AT bavar microstructuralinvestigationsofrapidlysolidifiedalcoyalloys AT mgogebakan microstructuralinvestigationsofrapidlysolidifiedalcoyalloys AT mtarakci microstructuralinvestigationsofrapidlysolidifiedalcoyalloys AT ygencer microstructuralinvestigationsofrapidlysolidifiedalcoyalloys AT skerli microstructuralinvestigationsofrapidlysolidifiedalcoyalloys |