@article{(Open Science Index):https://publications.waset.org/pdf/9999492, title = {Microstructure and Aging Behavior of Nonflammable AZ91D Mg Alloy}, author = {Seok Hong Min and Tae Kwon Ha}, country = {}, institution = {}, abstract = {Phase equilibria of AZ91D Mg alloys for nonflammable use, containing Ca and Y, were carried out by using FactSage® and FTLite database, which revealed that solid solution treatment could be performed at temperatures from 400 to 450oC. Solid solution treatment of AZ91D Mg alloy without Ca and Y was successfully conducted at 420oC and supersaturated microstructure with all beta phase resolved into matrix was obtained. In the case of AZ91D Mg alloy with some Ca and Y; however, a little amount of intermetallic particles were observed after solid solution treatment. After solid solution treatment, each 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 as at the temperature of 200oC for 10 hrs. }, journal = {International Journal of Industrial and Manufacturing Engineering}, volume = {8}, number = {10}, year = {2014}, pages = {1097 - 1100}, ee = {https://publications.waset.org/pdf/9999492}, url = {https://publications.waset.org/vol/94}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 94, 2014}, }