Soft magnetic iron-cobalt-based alloy and method for its production

US7909945B2 · kind B2 · utility

Assignee

• Vacuumschmelze GmbH & Co. KG · DE

Inventors

• Witold Pieper · Frankfurt, DE
• Joachim Gerster · Alzenau, DE

Key dates

• Filing date: Jul 27, 2007
• Grant date: Mar 22, 2011
• Expiry date: Jan 14, 2029

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M2200/9061
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Disclosed are soft magnetic alloys that consist essentially of 10% by weight ≦Co≦22% by weight, 0% by weight ≦V≦4% by weight, 1.5% by weight ≦Cr≦5% by weight, 1% by weight ≦Mn≦2% by weight, 0% by weight ≦Mo≦1% by weight, 0.5% by weight ≦Si≦1.5% by weight, 0.1% by weight ≦Al≦1.0% by weight, rest iron. Also disclosed are methods of making the alloys, and products containing them, such as actuator systems, electric motors, and the like.