Cooling Rate Sensitivity of RE-Containing Grain Refiner and Its Impact on the Microstructure and Mechanical Properties of A356 Alloy

Hua-Rui Zhang, Zhen-Bang Liu, Zi-Zhuo Li, Guo-Wei Li, Hu Zhang

Fig. 7 Microstructure of different sections of the A356 alloy wheel with the addition of AlTiB and AlTiB-RE refiners: a spoke with the addition of the AlTiB refiner; b spoke with the addition of the AlTiB-0.11% RE refiner; c spoke with the addition of the AlTiB-0.16% RE refiner; d inner rim with the addition of the AlTiB refiner; e inner rim with the addition of the AlTiB-0.11% RE refiner; f a typical higher magnification of e