TY - JFULL AU - Ju Hyun Won and Hyun Woo Lee and Seok Hong Min and Tae Kwon Ha PY - 2015/9/ TI - Effect of Aging Treatment on Mechanical Properties of Non-Flammable AZ91D Mg Alloy T2 - International Journal of Materials and Metallurgical Engineering SP - 1070 EP - 1074 VL - 9 SN - 1307-6892 UR - https://publications.waset.org/pdf/10003376 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 104, 2015 N2 - Microstructure and mechanical properties of AZ91D Mg alloys for nonflammable use, containing Ca and Y, were investigated in this study. Solid solution treatment of AZ91D Mg alloy with Ca and Y was successfully conducted at 420oC and supersaturated microstructure with almost all beta phases resolved into matrix was obtained. After solid solution treatment, the alloy was annealed at temperatures of 180 and 200oC for time intervals from 1 min to 48 hrs and hardness of each condition was measured by micro-Vickers method. Peak aging conditions were deduced from the results as at the temperature of 200oC for 10 hrs. Hot rolling was also carried out at 400oC by the reduction ratio of 0.6 through 5 passes followed by recrystallization treatment. Tensile and compressive properties were measured at room temperature on the specimens of each process, i.e. as-cast, solution treatment, hot rolling, and recrystallization. ER -