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Phase Diagram of near Equiatomic Zr-Pd Alloy

1
Division of Materials Science, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
2
Interdisciplinary Graduate School of Science and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
3
Technical Division, Faculty of Engineering, Kumamoto University, Kumamoto 860-8555, Japan
4
Department of Advanced Materials Science and Engineering, Faculty of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
*
Author to whom correspondence should be addressed.
Present address: Advanced Technology Research Laboratories, Nippon Steel & Sumitomo Metal Corporation, 1-8 Fuso-Cho, Amagasaki, Hyogo 660-0891, Japan.
Metals 2018, 8(5), 366; https://doi.org/10.3390/met8050366
Received: 28 April 2018 / Revised: 16 May 2018 / Accepted: 18 May 2018 / Published: 21 May 2018
(This article belongs to the Special Issue Zirconium Alloys)
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Abstract

The exact eutectoid and peritectoid temperatures in near equiatomic Zr-Pd compositions have been determined by using the diffusion couple method and microstructure analysis. The crystal structure of Zr13Pd12 compound were estimated to be orthorhombic with a = 1.78 nm, b = 0.80 nm and c = 1.00 nm from the electron diffraction experiments. The Zr13Pd12 compound is formed at 1100 ± 2 K with a peritectoid reaction between Zr2Pd and ZrPd compounds. The ZrPd compound transforms to Zr13Pd12 and Zr9Pd11 compounds by a eutectoid reaction at 1028 ± 4 K. Based on these results, the phase diagram of near equiatomic Zr-Pd binary system is reconstructed. View Full-Text
Keywords: Zr-Pd alloy; crystal structure; microstructure; phase diagrams; transmission electron microscopy Zr-Pd alloy; crystal structure; microstructure; phase diagrams; transmission electron microscopy
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Matsuda, M.; Nishiura, T.; Yamamuro, T.; Nishida, M. Phase Diagram of near Equiatomic Zr-Pd Alloy. Metals 2018, 8, 366.

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