The rapid prediction of the modification level of Al-Si alloys by surface tension.

Shi, D. Q.; Li, D. Y.; Gao, G. I.

Both the theoretical analysis and experiments on Al-Si alloys have shown that a relationship between the surface tension and the modification of Al-Si alloys exists. A new method for the rapid prediction of the the modification level of Al-Si alloys by surface tension has been introduced. The quantity of the modifier is found to have the greatest effect, followed by the time of the modif cation and then the temperature. In Al-Si alloys, when the surface tension is above 530 mN/m, the modification level is partial. When the surface tension is between 400 mN/m and 530 mN/m, the modification level is moderate. When the surface tension is below 400 mN/m, the modification level is perfect.

SURFACE tension; ALUMINUM alloys; SILICON alloys; MODIFICATIONS; MATERIALS science

JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2008, Vol 60, Issue 11, p25

1047-4838

Academic Journal

10.1007/s11837-008-0142-8