Viscosity of AZ91D and AZ31 Alloys

The viscosity thermophysical property data is included with the TCS Mg-based Alloys Database (TCMG) starting with version 6 (TCMG6).

AZ91D

Kinematic viscosity of AZ91D alloy has been measured in several studies [2006Par; 2008Aba; 2009Mi] but the results of these measurements are not in agreement with each other. This plot shows the viscosity plot of AZ91D alloys as a function of temperature along with the experimental data.

Calculated kinematic viscosity of AZ91D alloy.

Figure 1: Calculated kinematic viscosity of AZ91D alloy.

AZ31

The following figure shows the comparison between the measured and calculated values of the dynamic viscosity of the AZ31 alloy.

Predicted values of the dynamic viscosity of AZ31 is compared with the measured data.

Figure 2: Predicted values of the dynamic viscosity of AZ31 is compared with the measured data. The experimental data is taken from [2013Yak].

References

[2006Par] S. H. Park, B. Y. Hur, “Surface tension and viscosity of Mg alloys” in Institute of Cast Metals Engineers - 67th World Foundry Congress, Wfc06: Casting the Future (Institute of Cast Metals Engineers (ICME), Harrogate, UK, 2006)vol. 1, pp. 288–294.

[2008Aba] I. S. Abaturov, P. S. Popel, I. G. Brodova, V. V Astafiev, L. Peijie, Exploration of the viscosity temperature dependences and microstructure of magnesium-based commercial alloy AZ91D with small additions of calcium. J. Phys. Conf. Ser. 98, 062023 (2008).

[2009Mi] G. Mi, L. He, L. Pei-jie, P. S. Pope, I. S. Abaturov, Viscosity of AZ91D magnesium alloy melt with small additions of calcium. Chinese J. Nonferrous Met. 19, 1372–1378 (2009).

 [2013Yak] A. Yakymovych, Y. Plevachuk, V. Sklyarchuk, “Influence of Zn and Al additions on viscosity of liquid Mg” in Magnesium Technology 2013 (Montreal, Canada, 2013), pp. 1600–1605.