Cast aluminum alloy components

Patent metadata

Field	Value
Publication number	US-9834828-B2
Application number	US-201414265995-A
Country	US
Kind code	B2
Filing date	Apr 30, 2014
Priority date	Apr 30, 2014
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

Aluminum alloy components having improved properties. In one form, the cast alloy component may include about 0.6 to about 14.5 wt % silicon, 0 to about 0.7 wt % iron, about 1.8 about 4.3 wt % copper, 0 to about 1.22 wt % manganese, about 0.2 to about 0.5 wt % magnesium, 0 to about 1.2 wt % zinc, 0 to about 3.25 wt % nickel, 0 to about 0.3 wt % chromium, 0 to about 0.5 wt % tin, about 0.0001 to about 0.4 wt % titanium, about 0.002 to about 0.07 wt % boron, about 0.001 to about 0.07 wt % zirconium, about 0.001 to about 0.14 wt % vanadium, 0 to about 0.67 wt % lanthanum, and the balance predominantly aluminum plus any remainders. Further, the weight ratio of Mn/Fe is between about 0.5 and about 3.5. Methods of making cast aluminum parts are also described.

First claim

What is claimed is:

1. A cast aluminum-based component comprising, in weight percentages: about 1.1 to about 7.0 Si; about 0 to about 0.7 Fe; about 4.13 Cu; about 1.14 Mn; about 0.2 Mg; about 0.2 Zn; about 0.12 Ni; about 0.15 Cr; about 0.019 Sn; about 0.379 Ti; about 0.066 B; about 0.624 Zr; about 0.078 V; about 0.032 La; the balance being predominantly aluminum plus any remainders; wherein a weight ratio of Mn/Fe is between about 0.5 and about 3.5.

2. The component of claim 1 , wherein the weight percentage of Si is about 1.1.

3. The component of claim 1 , wherein the weight percentage of Si is about 7.

4. The component of claim 1 , wherein the combined weight percentages of Mo, Co, Nb, and Y are less than about 0.2.

5. The component of claim 1 , wherein the component is a cylinder head, engine block, wheel, pistons, bracket, case, or suspension.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Doty Herbert W

Classifications

• C22F1/043

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

• C22C21/18

  with zinc · CPC title

• C22F1/002

  by rapid cooling or quenching; cooling agents used therefor · CPC title

• C22C21/02 Primary

  with silicon as the next major constituent · CPC title

• C22F1/057

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