Moulded AL-SI-CU aluminium alloy component with high hot-process resistance
OwnerGerard Laslazinventor
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Abstract
A cast component with high hot-process mechanical strength and high creep strength in the 230-380° C. temperature range, made of aluminum alloy containing, in wt %: Mg<0.1, and preferably <0.03; Si: 4.5-10; Cu: 2.0-5.0 and preferably 3.0-4.0; Ni<0.4 and preferably <0.1; Ti: 0.05-0.25 and preferably 0.08-0.20; Zr: 0.05-0.25 and preferably 0.12-0.20; Fe: <0.9 and preferably <0.3; Zn<0.3 and preferably <0.1; optionally V: 0.02-0.30 preferably 0.04-0.20; Mn: 0.1-0.5 preferably 0.15-0.40; Hf, Nb, Ta, Cr, Mo and/or W: 0.03-0.30; other elements <0.10 each and <0.30 in total, the rest being aluminum. The alloy is used for the manufacture of internal combustion engine cylinder heads.
Claims12
Cast part with high creep resistance, made from an alloy consisting essentially of (% by weight):
- Mg<0.1
- Si:
- 4.5-10
- Cu:
- 2.0-5.0
- Ni<0.4
- Ti:
- 0.03-0.25
- Zr:
- 0.05-0.25
- Fe<0.9
- Zn<0.3
- Possibly V:
- 0.02-0.30
- Mn:
- 0.1-0.5
- Hf, Nb, Ta, Cr, Mo and/or W:
- 0.03-0.30
- other elements <0.10 each and <0.30 total, the remainder being aluminum.
Dependencies are inferred from the claim text.