Texture Evolution and Its Relationship with Strain Path of Mg-Ca-Zn Lean Alloys

The project was based on magnesium-calcium-zinc (Mg-Ca-Zn) alloys, a topical study the area of Mg alloys. There has been extensive research, leading to many explanations for the mechanism of texture weakening in the Mg-Ca-Zn alloys. However, the explanations of the texture weakening remain controversial. Different materials and different processing routes (extrusion and rolling) lead to different results. Different processing routes cause different strain paths in the materials. The role of the strain path on the texture weakening mechanism is unknown and is therefore important to investigate. The aim of this project was to discover the relationship between the different strain paths and the mechanism of the weakening effect in Mg-Zn-Ca alloy. The relationship between strain/strain rate and mechanism of the weakening effect was also investigated. While the role of the Ca and Zn in weakening the texture of the Mg alloys is clearer, the relationship between the Ca/Zn ratio and the texture weakening in Mg-Ca-Zn alloy still needs further investigation and is also the subject of this work.