Recent developments in rare earth free wrought magnesium alloys having high strength: A review
Abstract To further expand industrial application of Magnesium alloys, developments of the low cost, Rare Earth free Magnesium alloys with high strength were strongly desired. In this review, recent researches on the Rare Earth free Magnesium alloys will be critically reviewed from the viewpoint of the novel alloying designs, e.g. Magnesium Zinc, Magnesium Tin and Magnesium Calcium systems, and advanced processing technologies to summarize the experimental progresses in pursuing high strength. Considering the large strength gap between the current Rare Earth free Magnesium alloys and state of the art Magnesium Rare Earth alloy or high strength Aluminum alloy, the new strengthening mechanism, such as the solute clustering which was recently observed in Magnesium Rare Earth alloys and the other Rare Earth free Magnesium systems, was suggested. Accordingly, the new alloy design and processing routes, and also the future research directions for Rare Earth free Magnesium alloys would be proposed.