COPPER ALUMINUM ALLOY MOLDED PART HAVING HIGH MECHANICAL STRENGTH AND HOT CREEP RESISTANCE

摘要

The invention relates to a molded part having high mechanical strength and hot creep resistance, which is made of cast aluminum alloy having the following 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 totaling < 0.15% and 0.05% each, the remainder being aluminum. The invention also relates specifically to supercharged diesel or gasoline internal combustion engine cylinder heads.