Wrought magnesium alloy capable of being heat treated at high temperature
View Patent ↗Disclosed are a magnesium (Mg) alloy and a manufacturing method thereof. The Mg alloy has a composition including, by weight, 4% to 10% of Sn, 0.05% to 1.0% of Ca, 0.1% to 2% of at least one element selected from the group including Y and Er, the balance of Mg, and the other unavoidable impurities. The Mg alloy includes an Mg2Sn phase having excellent thermal stability, and is capable of being heat treated at a temperature of 480° C. or more.
1. A wrought magnesium (Mg) alloy having a composition comprising: by weight, 4% to 10% of Sn; 0.05% to 0.6% of Ca; 0.1% to 2% of at least one element selected from the group including Y and Er; the balance of Mg; and the other unavoidable impurities, wherein the Mg alloy includes an Mg 2 Sn phase.
2. The wrought magnesium alloy of claim 1 , wherein the content of Sn ranges, by weight, from 4.5% to 8.5%.
3. The wrought magnesium alloy of claim 1 , wherein the content of the at least one element selected from Y and Er ranges, by weight, from 0.1% to 1%.
4. The wrought magnesium alloy claim 1 , wherein the composition of the Mg alloy further comprises, by weight, 0.5% to 6.5% of Al.
5. The wrought magnesium alloy of claim 1 , wherein the composition of the Mg alloy further comprises, by weight, 0.1% to 3% of Zn.
6. The wrought magnesium alloy of claim 1 , wherein the composition of the Mg alloy further comprises, by weight, greater than 0% but not greater than 0.5% of Mn.
7. The wrought magnesium alloy of claim 1 , wherein the Mg alloy has an ignition temperature of 500° C. or more.