稀土元素对ZL101合金中的α相形貌影响

Influence of Rare Earth Element on α Phase figure of ZL101 Alloy

从热力学和动力学的条件上,研究了稀土元素加入到ZL101铝合金后,稀土元素对初生相α相生长情况的影响。研究表明:由于稀土元素的存在,改变了α相生长过程中α相-与液相间的界面条件,促进α相的球化生长,这种促进效果存在一个稀土最佳的加入量,本试验结果,最佳的加入量为0.5%,并稀土元素的加入都会细化α相晶粒。

The effect of Rare Earth element on αphase growing in ZLIO1 Alloy with thermodynamic and kinetic condition. It is showed by the research, that the condition of interphase is changed by Rare Earth element existing in the process of ZLIO1 Alloy concreting, it influences the process ofαphase growing and facilitates that otphase grows in sphere,there is a optimal Rare Earth quantity for facilitative effect, it is 0. 5% in this experimentation, andαphase grain will be change to small by adding Rare Earth.