Castable heat resistant aluminium alloy

US9163302B2 · kind B2 · utility

Assignees

• NORSK HYDRO ASA · NO
• Montupet S.A. · FR

Inventors

• Terje Iveland · Åsgårdstrand, NO
• Stig Brusethaug · Åsgårdstrand, NO
• Petter Asholt · Åsgårdstrand, NO
• Bruno Barlas · Saint-Cyr-sur-Loire, FR
• Denis Massinon · Liancourt, FR
• Philippe Meyer · Koblenz, DE

Key dates

• Filing date: Jun 16, 2011
• Grant date: Oct 20, 2015
• Expiry date: Jun 16, 2031

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F7/0085
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to a castable heat resistant aluminum alloy for high temperature applications such as components in combustion engines, in particular for the manufacturing of highly loaded cylinder heads, the alloy comprises the following composition: .Si: 6.5-10 wt %.Mg: 0.25-0.35 wt %.Cu: 0.3-0.7 wt %.Hf: 0.025-0.55 wt % Optionally with the addition of: .Ti: 0-0.2 wt %.Zr: 0-0.3 wt %, the balance being made of Al and unavoidable impurities including Fe.