了解液体合金中某组分的扩散系数,对于研究合金结构、性质以及实际应用有着重要意义。然而对于活性较大的合金组分,其扩散系数是十分难测的。用电化学方法测量稀土金属在铝中的扩散系数极为少见。文献[1]只报道了利用恒电位法测量Al-Ce和Al-La这两种合金中稀土金属的扩散系数。利用阳极计时电位法测量铝液中稀土金属扩散系数的工 Understanding the diffusion coefficient of a component in liquid alloy is of great significance for studying the structure, properties and practical application of the alloy. However, for the more active alloy components, the diffusion coefficient is very difficult to detect. It is extremely rare to measure the diffusion coefficient of rare earth metals in aluminum electrochemically. Literature [1] reported only the use of potentiostatic method to measure the diffusion coefficient of rare earth metals in both Al-Ce and Al-La alloys.工 APPLIED MEASUREMENT OF RARE EARTH METAL DIFFUSION COEFFICIENT IN LIQUID BY ANODIC