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Aircraft metallic materials >> Light and Superlight Alloys on the Base of Al and Mg >> Magnesium alloys

Magnesium alloys

Presently the magnesium alloys are of great interest among the designers of aerospace engineering. The production of primary magnesium in the world is doubled and achieved 500-550 thousand tons per year for the last 10-15 years. Mg alloys are not only light-weight structural materials but they are left as the single competitor of structural plastics and Al medium-strength alloys by weight characteristics with the significant advantages:

- high specific strength and rigidity, good fatigue properties;
- stability of mechanical properties and dimensions during the long-term storage due to the natural ageing capability;
- operation ability within the wide temperature range from cryogenic (-70 ÷ -196°C) to high ones (short-term to 300-350°C, long-term to 200-250°C);
- high damping ability, good thermal and antinoise shielding a.o.

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