Dissolution of Solid Copper into Molten Tin-Lead Alloys under Static Conditions

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Abstract
The dissolution of copper into molten tin-lead alloys has been studied at 673 K under static conditions using three kinds of reaction couple method. The dissolution of copper increased with increasing tin concentration of the melt owing to the difference in the saturation concentration of the melt. The differences in the dissolution of copper between the liquid lower and upper conditions and between the upper and lower coppers under the liquid sandwiched condition were obtained in tin-rich alloys. The differences were attributed to the natural convection resulting from the density difference in the melt. The thickness of the alloy layer formed at a solid-liquid interface increased with approaching to the saturation and with increasing concentration of tin in the melt.

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