电位-pH平衡图及其在核材料腐蚀研究中的应用

Potential-pH equilibrium diagrams applied to corrosion studies of nuclear materials

综述了金属平衡电位与溶液 p H值的关系、理论电位 - p H图与实验电位 - p H图的绘制 ,分析了电位 - p H图在腐蚀研究应用中的理论判据。着重探讨了核反应堆材料的电位 - p H平衡图 ,且在铝、锆两种重要的核材料的电位 - p H图的基础上 ,对其电化学性能和应用进行了分析和推测。概述了电位 - p H图在核材料腐蚀研究中的应用 。

This paper reviews the relationship between the equilibrium potential, E, of metals and the pH of solutions and the development of theoretical and experimental potential-pH diagrams with emphasis on nuclear-related materials. The theoretical criterion for applying potential-pH diagrams to corrosion studies is then analyzed. The electrochemical properties of aluminium and zirconium, two typical nuclear materials, are estimated from their potential-pH diagrams. The results show how the potential-pH diagrams can be applied to corrosion studies of nuclear materials.