中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 17 Special 1 November 2007 |
（1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;
2. Key Laboratory of Hunan Province of the Nonferrous Metal Material Science and Engineering,
Central South University, Changsha 410083, China）
Abstract:With CALPHAD(calculation of phase diagrams) method, the solidification paths of several Al-rich Al-Mg-Er alloys were calculated with Scheil—Gulliver model in the Thermo-calc software. And the amounts of several phases formed during solidification were also calculated. Synchronously, the heat-treatment temperatures of the same alloys were predicted by thermodynamic calculation. The calculated results show that by adding 0.4%Er (mass fraction), the strength effect of Er in Al-Mg alloy is better. This result is in agreement with the experimental investigations.
Key words: Al-Mg-Er alloys; solidification simulation; CALPHAD
