TY - JOUR AU - Liu, Chunxiang AB - Superplastic mechanical properties of the AZ31 and AZ31-1.0Y-1.3Sr magnesium alloy sheets produced by twin-roll casting and sequential hot rolling (TRC) were investigated. The AZ31-1.0Y-1.3Sr alloy sheets with the thickness of 1 mm were prepared by twin-roll casting process, which exhibited finer equiaxed grain structure. Uniaxial tensile testing and gas blow forming on AZ31 and AZ31-1.0Y-1.3Sr magnesium alloy sheets were carried out. Results show that the superplastic mechanical properties of AZ31-1.0Y-1.3Sr alloys are better than those of AZ31 alloys at 400 °C and the strain rate of 7 × 10−4/s. The addition of Y and Sr elements is helpful to improve the formability of AZ31 alloy. Grain boundary sliding plays a dominant role in superplastic forming. TI - Superplastic Properties of AZ31 and AZ31-1.0Y-1.3Sr Alloy Produced by Twin-Roll Casting and Sequential Hot Rolling JF - Journal of Materials Engineering and Performance DO - 10.1007/s11665-015-1857-7 DA - 2015-12-22 UR - https://www.deepdyve.com/lp/springer-journals/superplastic-properties-of-az31-and-az31-1-0y-1-3sr-alloy-produced-by-ILaowbdX8O SP - 635 EP - 641 VL - 25 IS - 2 DP - DeepDyve ER -