中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 10 No. 3 June 2000 |
microstructure of Al-Si alloy melt①
（1. Department of Mechanical Engineering, Tsinghua University,
Beijing100084, P.R.China;
2. School of Materials Science and Engineering, Harbin Institute of Technology,
Harbin 150001, P.R.China）
Abstract:Thermodynamic law of interaction between modification element and alloy melt has been analyzed, and the effect of modification element on electrical resistivity of melt has been studied. It was found that, in a certain range of concentration, there exists a‘node’where the alloy melt reconstruction will occur. An extreme value appeared in the relationship curve of melt’s resistivity and modification element’s concentration corresponding to the‘node’, where the solidified structure of the alloy changed remarkably.
Key words: Al-Si alloy melt; thermodynamics; modification
