Magnesium-based casting alloys having improved elevated...

Details Magnesium-based casting alloys having improved elevated... Magnesium-based casting alloys having improved elevated...

C - Chemistry, Metallurgy

22

C

C22C 23/02 (2006.01) C22C 23/00 (2006.01)

Patent

CA 2394122

A magnesium-based casting alloy having good salt-spray corrosion resistance and improved creep resistance, tensile yield strength and bolt-load retention, particularly at elevated temperatures of at least 150 °C, is provided. The inventive alloy comprises, in weight percent, 2 to 9% aluminum and 0.5 to 7% strontium, with the balance being magnesium except for impurities commonly found in magnesium alloys.

L'invention concerne un alliage de moulage à base de magnésium présentant une bonne résistance à la corrosion au brouillard salin et une plus grande résistance au fluage, une plus grande résistance élastique à la traction et une meilleure rétention de charge de boulon, en particulier à des températures élevées d'au moins 150 DEG C. Cet alliage comprend de 2 à 9 % en poids d'aluminium et de 0,5 à 7 % en poids de strontium, le reste étant formé de magnésium à l'exception des impuretés communément trouvées dans les alliages de magnésium.

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