Heat resistant magnesium die casting alloys
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakumi Hijii, Tomoyasu Kitano, Koichi Ohori, Yusuke Nakaura, Harutoshi Matsuyama
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Abstract
A heat resistant magnesium die casting alloy simultaneously improved in heat resistance and castability and expanded in range of application is provided. It comprises, includes, by wt %, the following composition: Al: over 6% to not more than 10 %, Ca: 1.8 to 5%, Sr: 0.05 to 1.0%, Mn: 0.1 to 0.6%, and Bal: Mg and unavoidable impurities, the ratio Ca/Al of the Ca content to the Al content being 0.3 to 0.5. To improve the corrosion resistance, 0.1 to 3% of a RE may also be added.
Claims10
A heat resistant magnesium die casting alloy comprising, by wt %, the following composition:
- Al:
- over 6% to not more than 10%,
- Ca:
- 1.8 to 5%,
- Sr:
- 0.05 to 1.0%,
- Mn:
- 0.1 to 0.6%, and
- Bal:
- Mg and unavoidable impurities,
- the ratio Ca/Al of the Ca content to the Al content being 0.3 to 0.5.
Dependencies are inferred from the claim text.