Copper aluminum alloy molded part having high mechanical strength and hot creep resistance
AssigneeRio Tinto Alcan International Limited
InventorsMichel Garat, James Frederick Major, Danny Jean
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Abstract
The subject of the invention is a cast part with high static mechanical strength, and high hot creep strength, made of aluminum alloy of chemical composition: Si: 0.02-0.50%, Fe: 0.02-0.30%, Cu: 3.5-4.9%, Mn: <0.70%, Mg: 0.05-0.20%, Zn <0.30%, Ni: <0.30%, V: 0.05-0.30%, Zr: 0.05-0.25%, Ti: 0.01-0.35%, other elements in total <0.15%; and 0.05% each, the remainder being aluminum. It more particularly relates to cylinder heads for supercharged diesel or gasoline internal combustion engines.
Claims26
Cast part with high static mechanical strength at ambient and hot temperatures and high creep strength at high temperature, cast in aluminum alloy with a chemical composition comprising, expressed as percentages by weight:
- Si:
- 0.02-0.50%
- Fe:
- 0.02-0.30%
- Cu:
- 3.5-4.9%
- Mn:
- <0.70%
- Mg:
- 0.05-0.20%
- Zn:
- <0.30%
- Ni:
- <0.30%
- V:
- 0.05-0.30%
- Zr:
- 0.05-0.25%
- Ti:
- 0.01-0.35%
- other elements in total <0.15%;
- and less than 0.05% each,
- the remainder being aluminum.
Dependencies are inferred from the claim text.