Aluminum casting alloy with high strength, high elongation and high thermal conductivity and method for manufacturing same
AssigneeKorea Institute of Materials Science
InventorsYoung Hee CHO, Su Hyeon KIM, Kwang Jun EUH, Jung Moo LEE, Soo Bae KIM, Seung Uk LEE
Life of this patent
Estimating the term…
Abstract
Provided is an aluminum casting alloy with high strength, high elongation and high thermal conductivity, including: 6.5% by weight or more and 11.5% by weight or less of silicon (Si); 0.2% by weight or more and 0.4% by weight or less of magnesium (Mg); 0.32% by weight or more and 0.85% by weight or less of iron (Fe); and a remainder including aluminum (Al) and inevitable impurities, wherein α-AlFeSi intermetallic compound with a cubic crystal structure is included in an aluminum matrix.
Claims18
An aluminum casting alloy with high strength, high elongation and high thermal conductivity, comprising:
- 6.5% by weight or more and 11.5% by weight or less of silicon (Si);
- 0.2% by weight or more and 0.4% by weight or less of magnesium (Mg);
- 0.32% by weight or more and 0.85% by weight or less of iron (Fe);
- and
- a remainder comprising aluminum (Al) and inevitable impurities,
- wherein α-AlFeSi intermetallic compound with a cubic crystal structure is comprised in an aluminum matrix.
A method of manufacturing an aluminum casting alloy with high strength, high elongation and high thermal conductivity, the method comprising:
- a first step of providing an aluminum casting alloy molten metal comprising 6.5% by weight or more and 11.5% by weight or less of silicon (Si);
- 0.2% by weight or more and 0.4% by weight or less of magnesium (Mg);
- 0.32% by weight or more and 0.85% by weight or less of iron (Fe);
- and a remainder comprising aluminum (Al) and inevitable impurities;
- and
- a second step of applying external energy at a temperature higher than a liquidus temperature of the aluminum casting alloy molten metal such that α-AlFeSi intermetallic compound with a cubic crystal structure is comprised in an aluminum matrix, followed by cooling.
An aluminum casting alloy with high strength, high elongation and high thermal conductivity, comprising:
- 6.5% by weight or more and 11.5% by weight or less of silicon (Si);
- 0.2% by weight or more and 0.4% by weight or less of magnesium (Mg);
- 0.2% by weight or more and 0.3% by weight or less of iron (Fe);
- and
- a remainder comprising aluminum (Al) and inevitable impurities,
- wherein α-AlFeSi intermetallic compound with a cubic crystal structure is comprised in an aluminum matrix.
A method of manufacturing an aluminum casting alloy with high strength, high elongation and high thermal conductivity, the method comprising:
- a first step of providing an aluminum casting alloy molten metal comprising 6.5% by weight or more and 11.5% by weight or less of silicon (Si);
- 0.2% by weight or more and 0.4% by weight or less of magnesium (Mg);
- 0.2% by weight or more and 0.3% by weight or less of iron (Fe);
- and a remainder comprising aluminum (Al) and inevitable impurities;
- and
- a second step of applying external energy at a temperature higher than a liquidus temperature of the aluminum casting alloy molten metal such that α-AlFeSi intermetallic compound with a cubic crystal structure is comprised in an aluminum matrix, followed by cooling.
Dependencies are inferred from the claim text.