TY - JOUR N2 - Investigation of the tensile and fatigue properties of cast magnesium alloys, created by the heated mold continuous casting process (HMC), was conducted. The mechanical properties of the Mg-HMC alloys were overall higher than those for the Mg alloys, made by the conventional gravity casting process (GC), and especially excellent mechanical properties were obtained for the Mg97Y2Zn1 -HMC alloy. This was because of the fine-grained structure composed of the -Mg phases with the interdendritic LPSO phase. Such mechanical properties were similar levels to those for conventional cast aluminum alloy (Al84.7Si10.5Cu2.5Fe1.3Zn1 alloys: ADC12), made by the GC process. Moreover, the tensile properties (UTS and f ) and fatigue properties of the Mg97Y2Zn1 -HMC alloy were about 1.5 times higher than that for the commercial Mg90Al9Zn1 -GC alloy (AZ91). The high correlation rate between tensile properties and fatigue strength (endurance limit: l ) was obtained. With newly proposed etching technique, the residual stress in the Mg97Y2Zn1 alloy could be revealed, and it appeared that the high internal stress was severely accumulated in and around the long-period stacking-order phases (LPSO). This was made during the solidification process due to the different shrinkage rate between α-Mg and LPSO. In this etching technique, microcracks were observed on the sample surface, and amount of micro-cracks (density) could be a parameter to determine the severity of the internal stress, i.e., a large amount to micro-cracks is caused by the high internal stress. L1 - http://www.czasopisma.pan.pl/Content/101955/PDF/afe-2016-0111.pdf L2 - http://www.czasopisma.pan.pl/Content/101955 PY - 2016 IS - No 4 DO - 10.1515/afe-2016-0111 KW - magnesium alloy KW - Unidirectional solidification KW - Continuous casting KW - Mechanical property KW - Microstructural characteristic A1 - Okayasu, M. A1 - Wu, S. A1 - Tanimoto, T. A1 - Takeuchi, S. PB - The Katowice Branch of the Polish Academy of Sciences DA - 2016 T1 - Mechanical Properties of Magnesium Alloys Produced by the Heated Mold Continuous Casting Process UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/101955 T2 - Archives of Foundry Engineering ER -