Controlled expansion alloy

US4487743A · kind A · utility

Assignee

• HUNTINGTON ALLOYS CORPORATION · US

Inventors

• John S. Smith · Proctorville, US
• Darrell F. Smith, Jr. · Huntington, US

Key dates

• Filing date: Aug 20, 1982
• Grant date: Dec 11, 1984
• Expiry date: Aug 20, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/105
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In an age hardenable controlled expansion alloy essentially devoid of chromium, the combination of short term tensile properties and elevated temperature properties, particularly notch rupture strength, are improved by the inclusion therein of silicon in an amount leass than 1%.