|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Magnesium Technology 2018
||Effect of Micro-alloyed Neodynium on the Microstructure and Texture of Magnesium-zinc-calcium Alloys
||Yang Liu, Jing Su, Amjad Javaid, Tim Skszek, Stephen Yue
|On-Site Speaker (Planned)
It is well known that adding rare earth (RE) elements to magnesium (Mg) alloys is an effective way to weaken the basal textures developed during various forming processes. To reduce the cost of RE-containing Mg alloys, the current research focuses on ‘micro-alloyed’ Mg alloys with the RE contents below 0.5 wt.%. Two Mg-1Zn-xNd-0.2Ca (wt.%) alloys, i.e. x= 0.1 and 0.5, were designed in this paper. Both alloys were rolled at 450℃ to a total reduction of 45% in two passes and annealed subsequently at various temperatures. The evolution of microstructure and texture of the two alloys have been examined. Heavily twinned microstructures and non-basal textures were observed in both alloys subjected to hot rolling. The basal texture of both alloys was further modified after annealing, where basal poles splitting toward both the transverse direction (TD) and the rolling direction (RD). The effects of Nd and Ca on the suppression of dynamic and static recrystallization and texture randomization were discussed in the paper.