@ARTICLE{Jun_Joong-Hwan_Dependence_2019, author={Jun, Joong-Hwan}, volume={vol. 64}, number={No 3}, journal={Archives of Metallurgy and Materials}, pages={1183-1186}, howpublished={online}, year={2019}, publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences}, publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences}, abstract={The objective of this study was to investigate the dependence of the room temperature tensile properties on the volume fraction of discontinuous precipitates (DPs) in a cast AZ91 magnesium alloy. In order to obtain various volume fractions of DPs, the solution-treated alloy was aged at 428 K for up to 48 h. The volume fraction of DPs increased from 0% to 72% with an increase in the aging time up to 24 h; for aging times longer than 24 h, discontinuous precipitation was substantially inhibited owing to the occurrence of significant continuous precipitation within the α-(Mg) grains. YS and UTS of the alloy increased with the volume fraction of DPs, whereas the elongation showed a reverse trend. A relatively rapid change in the tensile properties with increasing volume fraction of DPs up to ~40% was noted, which would be due to the reduction of the effective α grain size in response to the formation of DPs along the grain boundaries.}, type={Artykuły / Articles}, title={Dependence of Room Temperature Tensile Properties on Volume Fraction of Discontinuous Precipitates in Cast AZ91 Magnesium Alloy}, URL={http://journals.pan.pl/Content/113039/PDF/AMM-2019-3-58-Jun.pdf}, doi={10.24425/amm.2019.129511}, keywords={discontinuous precipitates, microstructure, AZ91 alloy, aging, Tensile properties}, }