Al-Zn-Mg-Cu powder metallurgy alloy

US4732610A · kind A · utility

Assignee

• Aluminum Company of America · US

Inventors

• Gregory J. Hildeman · Murrysville, US
• Linda C. Labarre · Penn Hills, US
• David J. Brownhill · Beaver, US
• Arshad Hafeez · Murrysville, US

Key dates

• Filing date: Feb 24, 1986
• Grant date: Mar 22, 1988
• Expiry date: Feb 24, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C1/0416
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Loose metal particles, or a consolidated metal particle composition, of an aluminum alloy consisting essentially of about 5 to 13% zinc, 1 to 3.5% magnesium, 0.5 to 3.0% copper, with iron being present up to 0.5%, with silicon being present up to 0.4%, plus nickel or cobalt or both being present in an amount effective essentially to place the iron in the incoherent dispersoid Al.sub.9 (Fe,M).sub.2, M being nickel or cobalt or both, M being present up to 0.75%, plus means being present for forming coherent dispersoids, said means being present up to 1%, balance aluminum.