Aluminum alloy with low density and high heat resistance

Patent metadata

Field	Value
Publication number	US-9896747-B2
Application number	US-201414494963-A
Country	US
Kind code	B2
Filing date	Sep 24, 2014
Priority date	Nov 27, 2013
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

The present invention relates to an aluminum alloy having low density and enhanced heat resistance. An aluminum alloy having improved high temperature physical properties comprises: magnesium (Mg) in an amount of about 7 to about 11 wt %, silicon (Si) in an amount of about 4 to about 8 wt %, copper (Cu) in an amount of about 0.5 to about 2 wt % and manganese (Mn) in an amount of about 0.3 to about 0.7 wt %, and a balance of aluminum based on the total weight of the aluminum alloy. Vehicle parts such as a piston, a housing and/or a bed plate of high power engine, to which the aluminum alloy may be applied, are provided as well.

First claim

What is claimed is:

1. An aluminum alloy having elevated heat resistance and low density consisting of: magnesium (Mg) in an amount of 8 to 11 wt %, silicon (Si) in an amount of 6 to 8 wt %, copper (Cu) in an amount of 0.5 to 2.0 wt % and manganese (Mn) in an amount of 0.3 to 0.7 wt %, and a balance of aluminum.

2. The aluminum alloy of claim 1 , wherein the aluminum alloy is applied to an engine piston.

3. An automotive vehicle part comprising the aluminum alloy of claim 1 .

4. The automotive vehicle part of claim 3 wherein the vehicle part comprises an engine piston.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kang Hee Sam

Classifications

• F05C2203/06

  Silicon · CPC title

• F02F3/0084

  the pistons being constructed from specific materials · CPC title

• C22F1/047

  of alloys with magnesium as the next major constituent · CPC title

• F05C2201/028

  Magnesium · CPC title

• C22C21/08 Primary

  with silicon · CPC title