High Performance Mg Alloy with Designed Microstructure and Phases
In: Materials, Jg. 17 (2024-06-01), Heft 11, S. 2734-2734
Online
academicJournal
Zugriff:
A high strength and ductile Mg-Gd-Y-Zn-Zr alloy was designed and fabricated. The local strain evolution of the alloys during plastic deformation was analyzed using high-resolution digital image correlation (DIC). The results showed that the β particles, nano-sized γ’ phases, and LPSO phases were distributed in the as-extruded alloy and a bimodal microstructure was exhibited, including elongated un-dynamic recrystallized grains and fine dynamic recrystallized grains. With increasing extrusion ratio, the grain size remained, with the volume fraction of dynamic recrystallization of the as-extruded alloy increasing from 30% to 75%, and the as-extruded alloy exhibited a high strength-ductility synergy, which is attributed to the grain refinement, extensive β particles, and elongated block-shaped LPSO phases. The strain evolution analysis showed that a strain-transfer from un-DRXed regions to adjacent DRXed regions and LPSO phases can promote uniform plastic deformation, which tends to improve the ductility of the alloy.
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High Performance Mg Alloy with Designed Microstructure and Phases
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Autor/in / Beteiligte Person: | Yang, Zhao ; Xu, Chao ; Song, Shengnan ; Nakata, Taiki ; Kamado, Shigeharu |
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Zeitschrift: | Materials, Jg. 17 (2024-06-01), Heft 11, S. 2734-2734 |
Veröffentlichung: | MDPI AG, 2024 |
Medientyp: | academicJournal |
ISSN: | 1996-1944 (print) |
DOI: | 10.3390/ma17112734 |
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