Reactive Diffusion between Solid Fe and Liquid Zn at 723K
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概要
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Reactive diffusion between solid Fe and liquid Zn was experimentally examined using Fe/Zn diffusion couples prepared by an immersion technique. Using this technique, a pure iron sheet was immersed in a molten pure Zn bath with a constant temperature of T=723 K (450°C) for various times up to t=7.2×103 s (2 h). The microstructure of the cross section of the Fe/Zn diffusion couple was observed by scanning electron microscopy, and the chemical composition of each phase was determined by electron probe microanalysis. Interface concentrations of Fe for the ζ-FeZn13 and δ-FeZn7–10 phases at the ζ/δ interface, cζδ and cδζ, and for the liquid-Zn (L) phase at the ζ/L interface, cLζ, determined from the diffusion couples were found to be extremely higher than the corresponding equilibrium values, especially in the early stage of t<300 s, and the difference gradually decreased during immersion. The deviations from the equilibrium values for the cζδ and cLζ were proportional to the interdiffusion flux across the ζ phase layer.
- 社団法人 日本鉄鋼協会の論文
- 2007-05-15
著者
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Ishida Kiyohito
Department of Materials Science, Graduate School of Engineering, Tohoku University
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KAINUMA Ryosuke
Institute for Multidisciplinary Research for Advanced Materials, Tohoku University
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Kainuma Ryosuke
Institute For Multidisciplinary Research For Advanced Materials Tohoku University
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Ishida Kiyohito
Department Of Materials Science Faculty Of Engineering Tohoku University
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Kainuma Ryosuke
Institute Of Multidisciplinary Research For Advanced Materials (imram) Tohoku University
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Ishida Kiyohito
Department of Material Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Kainuma Ryosuke
Institute for Multidisciplinary Research for Advanced Materals, Tohoku University, Sendai 980-8577, Japan
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