US 10,851,447 B2 · ECAE materials for high strength aluminum alloys

Abstract

Disclosed herein is a method of forming a high strength aluminum alloy. The method comprises heating an aluminum material to a solutionizing temperature for a solutionizing time such that the magnesium and zinc are dispersed throughout the extruded aluminum material to form a solutionized aluminum material. The method includes quenching the solutionized aluminum material to form a quenched aluminum material. The method also includes aging the quenched aluminum material to form an aluminum alloy, then subjecting the aluminum alloy to an ECAE process to form a high strength aluminum alloy.

Claims8

Dependent claims

A high strength aluminum alloy material comprising:

aluminum as a primary component, from about 0.5 wt. % to about 4.0 wt. % magnesium and from about 2.0 wt. % to about 7.5 wt. % zinc, wherein a concentration of copper in the aluminum alloy is less than about 0.5 wt. %, wherein
the aluminum alloy has an average grain size from about 0.2 μm to about 0.8 μm in diameter, and wherein
the aluminum alloy has an average yield strength greater than about 300 MPa.

Dependencies are inferred from the claim text.

Facts

Application

15/824,283Filed 28 Nov 2017 · us provisional application

Priority

2 Dec 2016

Published

US 2018/0155812 A17 Jun 2018

Granted

1 Dec 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

C22F 1/053
Of aluminium or alloys based thereon: of alloys with zinc as the next major constituent
C22C 21/02
Alloys based on aluminium: with silicon as the next major constituent
C22C 21/06
Alloys based on aluminium: with magnesium as the next major constituent
C22C 21/10
Alloys based on aluminium: with zinc as the next major constituent

ECAE materials for high strength aluminum alloys

Life of this patent

ECAE materials for high strength aluminum alloys

Life of this patent

Abstract

Claims8