Control of Microstructure and Texture for Mechanical Properties of Mg-Al-Zn Alloys
In Mg-Al-Zn alloy sheets, the grains were refined from 30 mm to 2 mm during the process of differential speed rolling at 473 K, having approximately the same size dominate at a high thickness reduction rate of 60 %. In addition to these microstructural changes, the rolled sheets showed a weaker texture characterized by pole than those of commercial sheets. The DSR sheets have equal value of elongation at 0, 45, and 90 degrees from the rolling direction. With the mechanical properties, the results of Erichsen test indicate that DSR process remarkably enhanced ductility of the present Mg alloy sheets at room temperature.
Hyungsun Kim, Jian Feng Yang, Chuleol Hee Han, Somchai Thongtem and Soo Wohn Lee
H. G. Jeong et al., "Control of Microstructure and Texture for Mechanical Properties of Mg-Al-Zn Alloys", Materials Science Forum, Vol. 695, pp. 206-210, 2011