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Journal of Materials Engineering and Performance

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02-03-2023 | Technical Article

Phase Transformation and Recrystallization of As-Cast and Homogenized Mg-9Gd-4Y-2Zn-0.5Zr Alloys during Hot Compression

Authors: Jinsheng Ji, Zhaoming Yan, Jie Zheng, Jishi Zhang, Qiang Wang, Zhimin Zhang, Yong Xue

Published in: Journal of Materials Engineering and Performance | Issue 24/2023

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Abstract

In this paper, the microstructure evolution of as-cast and homogenized Mg-9Gd-4Y-2Zn-0.5Zr alloys during hot compression was studied by electron backscattered diffraction analysis. Specimens were compressed at 420 °C with reductions of 20, 40, and 70%. The results indicated that more recrystallized grains were obtained in the as-cast alloy, which was attributed to many block-shaped phase grains. Under the same conditions, the as-cast alloy had a finer microstructure and weaker texture. In the initial stage, dynamic recrystallization in the form of discontinuous dynamic recrystallization participated in deformation. Further deformation contributed to fine grains in the interior of deformed grains in the form of continuous dynamic recrystallization. Basal slip played an active part in the deformed grains, and the recrystallized grains activated pyramidal slip.

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Title: Phase Transformation and Recrystallization of As-Cast and Homogenized Mg-9Gd-4Y-2Zn-0.5Zr Alloys during Hot Compression
Authors: Jinsheng Ji
Zhaoming Yan
Jie Zheng
Jishi Zhang
Qiang Wang
Zhimin Zhang
Yong Xue
Publication date: 02-03-2023
Publisher: Springer US
Published in: Journal of Materials Engineering and Performance / Issue 24/2023
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-023-07930-5

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