摘要
从热力学和动力学的角度,研究了稀土元素加入到ZL101铝合金后,稀土元素对初生α相生长情况的影响。研究结果表明,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,促进了α相的球化生长。这种促进效果在稀土加入量为0.5%时效果最佳,且稀土元素的加入都会细化α相晶粒。
Effects of rare earth element on growth of primary α phase in ZL101 alloy were described based on thermodynamics and kinetics.The results indicate that the Re can promote the spherodization of α phase due to affecting the interface condition between α phase and liquid phase during growth process,refining the grain size of α phase,and an optimal Re addition with 0.5% can be observed.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2008年第3期171-172,共2页
Special Casting & Nonferrous Alloys
关键词
半固态
铝硅合金
凝固
稀土
Semi-solid,Al-Si Alloy,Solidification,RE
作者简介
郑志强，男，1958年出生，副教授，南昌大学机电学院，南昌（330031），电话：0791-3969640，E-mail：Zhenzq58@163.com
