Abstract
Non-combustible Mg−Al−Si and Mg−Zn base alloys containing Ca were rapidly quenched via melt spinning. The melt-spun ribbons were aged, and then the effects of additional elements on age hardening behavior and microstructural change were investigated. Age hardening occurred after aging at 200°C in the Mg−Al−Si−Ca alloys mainly due to the formation of Al2Ca or Mg2Ca phases, whereas it occurred in the Mg−Zn−Ca alloys mostly due to the distribution of Mg6Ca2Zn3 and Mg2Ca. With the increase of Ca content, the hardness values of the aged ribbons were increased. In this study, Mg−6Zn−5Ca alloy showed the maximum peak hardness after aging at 200°C for 1 hour. On the contrary, Mg−xZn−1.5Ca alloys couldn't show the pronounced peak hardness because of low Ca content.
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Park, WW., You, BS., Moon, BG. et al. Age hardening phenomena of rapidly quenched non-combustible Mg−Al−Si−Ca and Mg−Zn−Ca alloys. Met. Mater. Int. 7, 9–13 (2001). https://doi.org/10.1007/BF03026931
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DOI: https://doi.org/10.1007/BF03026931