On the microstructure and high-temperature stability of nano-grained Zircaloy-4
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Date
2022-03-15
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
A nano-grained microstructure of an α-Zr alloy (Zircaloy-4) was produced by high-pressure torsion, which shows evidence of a metastable ω-Zr phase, rather than β-Zr, determined by combining synchrotron X-ray diffraction and detailed electron microscopy observations. The ω-Zr phase is retained at ambient conditions and shows a new orientation relationship of [1011]α // [1100]ω and (1011)α // (1120)ω with the α-Zr matrix but is thermally unstable, fully reverting back to α-Zr phase upon heating above 350 °C. © 2021 Acta Materialia Inc. Published by Elsevier Ltd.
Description
Preprint version is attached to this entry.
Keywords
Temperature range 0400-1000 K, Zirconium alloys, Pressure range mega pa 10-100, Torsion, Microstructure, Stability, X-ray diffraction, Electron microscopy
Citation
Chen, L., Wang, Z., Zhu, H., Burr, P. A., Qu, J., Huang, Y., Balogh, L, Preuss, M. & Muránsky, O. (2022). On the microstructure and high-temperature stability of nano-grained Zircaloy-4. Scripta Materialia, 210, 114410. doi:10.1016/j.scriptamat.2021.114410