Heat-resistant magnesium alloy for gravity casting with high creep resistance

Abstract

The present invention provides a heat-resistant magnesium alloy for gravity casting, which has excellent high-temperature resistance, tensile strength, and creep resistance properties. In preferred embodiments, the present invention provides a heat-resistant magnesium alloy for gravity casting with high creep resistance, the magnesium alloy containing magnesium as a main component, 1.00 to 3.00 wt % neodymium, 2.00 to 6.00 wt % misch metal, 0.10 to 1.00 wt % zinc, 0.10 to 1.00 wt % zirconium, 0.01 to 0.50 wt % yttrium, 0.01 to 0.10 wt % calcium, 0.008 wt % silicon, 0.004 wt % iron, 0.003 wt % copper, and 0.001 wt % nickel.

1 . A heat-resistant magnesium alloy for gravity casting with high creep resistance, the magnesium alloy containing magnesium as a main component, 1.00 to 3.00 wt % neodymium, 2.00 to 6.00 wt % misch metal, 0.10 to 1.00 wt % zinc, 0.10 to 1.00 wt % zirconium, 0.01 to 0.50 wt % yttrium, 0.01 to 0.10 wt % calcium, 0.008 wt % silicon, 0.004 wt % iron, 0.003 wt % copper, and 0.001 wt % nickel. 
     
     
         2 . The magnesium alloy of  claim 1 , wherein the magnesium alloy contains magnesium as a main component, 1.5 to 2.50 wt % neodymium, 2.00 to 4.00 wt % misch metal, 0.30 to 0.60 wt % zinc, 0.20 to 0.50 wt % zirconium, 0.09 to 0.20 wt % yttrium, 0.01 to 0.05 wt % calcium, 0.008 wt % silicon, 0.004 wt % iron, 0.003 wt % copper, and 0.001 wt % nickel.