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 ...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.展开更多
基金Project(50771106 50731002) supported by the National Natural Science Foundation of ChinaProject(06FJ3006) supported by the Hunan Provincial Science and Technology Department, China
文摘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.
