In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy
Dilute Mg alloys processed by the rapidly solidified ribbon consolidation (RSRC) technique are candidate materials for structural applications due to their enhanced mechanical performance. The thermal stability of the structure in these alloys strongly influences their mechanical performance at elev...
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KeAi Communications Co., Ltd.
2025-04-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956725000805 |
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| author | Jenő Gubicza Kristián Máthis Péter Nagy Péter Jenei Zoltán Hegedűs Andrea Farkas Jozef Veselý Shin-ichi Inoue Daria Drozdenko Yoshihito Kawamura |
| author_facet | Jenő Gubicza Kristián Máthis Péter Nagy Péter Jenei Zoltán Hegedűs Andrea Farkas Jozef Veselý Shin-ichi Inoue Daria Drozdenko Yoshihito Kawamura |
| author_sort | Jenő Gubicza |
| collection | DOAJ |
| description | Dilute Mg alloys processed by the rapidly solidified ribbon consolidation (RSRC) technique are candidate materials for structural applications due to their enhanced mechanical performance. The thermal stability of the structure in these alloys strongly influences their mechanical performance at elevated temperatures. In this study, an RSRC-processed Mg–1% Ca–0.5% Zn–0.1% Y–0.03% Mn (at%) alloy was heated at a constant rate up to 833 K, and concurrently in situ X-ray diffraction (XRD) measurements were performed using synchrotron radiation in order to monitor the changes in the structure. In addition, ex situ electron microscopy investigations were carried out before and after annealing to complete the XRD study. On the basis of XRD results, the stages of the microstructure evolution during heating were identified. In addition, the thermal expansion coefficients of the matrix and the Mg2Ca secondary phase were determined. Between 299 and 400 K, the lattice constants of both the matrix and the Mg2Ca phase increased due to thermal expansion. In the temperature range of 400-673 K, the increase of the lattice constants with increasing the temperature continued, but their rate was different for the two phases which can induce thermal stresses. Between 673 and 753 K, the lattice constants of the secondary phase did not change most probably due to the compensating effects of the thermal expansion and the decrease of the Ca content. In the temperature range of 753–793 K, the Mg2Ca phase started to dissolve. Between 793 and 833 K the dissolution continued, and additionally the matrix was partially melted. |
| format | Article |
| id | doaj-art-53f5758baefb4e37a6dfa3b9f2fa1007 |
| institution | DOAJ |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-53f5758baefb4e37a6dfa3b9f2fa10072025-08-20T03:11:52ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-04-011341771178310.1016/j.jma.2025.02.024In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloyJenő Gubicza0Kristián Máthis1Péter Nagy2Péter Jenei3Zoltán Hegedűs4Andrea Farkas5Jozef Veselý6Shin-ichi Inoue7Daria Drozdenko8Yoshihito Kawamura9Department of Materials Physics, Faculty of Science, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest H-1117, Hungary; Corresponding authors.Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, Prague, 12116, Czech Republic; Corresponding authors.Department of Materials Physics, Faculty of Science, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest H-1117, HungaryDepartment of Materials Physics, Faculty of Science, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest H-1117, HungaryDeutsches Elektronen-Synchrotron DESY, Notkestr. 85, Hamburg 22603, GermanyDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, Prague, 12116, Czech RepublicDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, Prague, 12116, Czech RepublicMagnesium Research Center, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDepartment of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, Prague, 12116, Czech RepublicMagnesium Research Center, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, JapanDilute Mg alloys processed by the rapidly solidified ribbon consolidation (RSRC) technique are candidate materials for structural applications due to their enhanced mechanical performance. The thermal stability of the structure in these alloys strongly influences their mechanical performance at elevated temperatures. In this study, an RSRC-processed Mg–1% Ca–0.5% Zn–0.1% Y–0.03% Mn (at%) alloy was heated at a constant rate up to 833 K, and concurrently in situ X-ray diffraction (XRD) measurements were performed using synchrotron radiation in order to monitor the changes in the structure. In addition, ex situ electron microscopy investigations were carried out before and after annealing to complete the XRD study. On the basis of XRD results, the stages of the microstructure evolution during heating were identified. In addition, the thermal expansion coefficients of the matrix and the Mg2Ca secondary phase were determined. Between 299 and 400 K, the lattice constants of both the matrix and the Mg2Ca phase increased due to thermal expansion. In the temperature range of 400-673 K, the increase of the lattice constants with increasing the temperature continued, but their rate was different for the two phases which can induce thermal stresses. Between 673 and 753 K, the lattice constants of the secondary phase did not change most probably due to the compensating effects of the thermal expansion and the decrease of the Ca content. In the temperature range of 753–793 K, the Mg2Ca phase started to dissolve. Between 793 and 833 K the dissolution continued, and additionally the matrix was partially melted.http://www.sciencedirect.com/science/article/pii/S2213956725000805Mg-Ca-Zn-Y-Mn alloyAnnealingLattice constantThermal expansion coefficient |
| spellingShingle | Jenő Gubicza Kristián Máthis Péter Nagy Péter Jenei Zoltán Hegedűs Andrea Farkas Jozef Veselý Shin-ichi Inoue Daria Drozdenko Yoshihito Kawamura In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy Journal of Magnesium and Alloys Mg-Ca-Zn-Y-Mn alloy Annealing Lattice constant Thermal expansion coefficient |
| title | In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy |
| title_full | In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy |
| title_fullStr | In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy |
| title_full_unstemmed | In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy |
| title_short | In situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated Mg-Ca-Y-Zn-Mn alloy |
| title_sort | in situ diffraction study on the annealing performance of a rapidly solidified ribbon consolidated mg ca y zn mn alloy |
| topic | Mg-Ca-Zn-Y-Mn alloy Annealing Lattice constant Thermal expansion coefficient |
| url | http://www.sciencedirect.com/science/article/pii/S2213956725000805 |
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