Soft magnetic iron-cobalt-based alloy and process for manufacturing it

US9057115B2 · kind B2 · utility

Assignee

• Vacuumschmelze GmbH & Co. KG · DE

Inventors

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

Key dates

• Filing date: Jul 24, 2008
• Grant date: Jun 16, 2015
• Expiry date: Sep 19, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F41/0206
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A soft magnetic alloy consists essentially of 10 percent by weight≦Co≦22 percent by weight, 0 percent by weight≦V≦4 percent by weight, 1.5 percent by weight≦Cr≦5 percent by weight, 0 percent by weight<Mn<1 percent by weight, 0 percent by weight≦Mo≦1 percent by weight, 0.5 percent by weight≦Si≦1.5 percent by weight, 0.1 percent by weight≦Al≦1.0 percent by weight and the remainder iron, the content of the elements chromium and manganese and molybdenum and aluminum and silicon and vanadium being 4.0 percent by weight≦(Cr+Mn+Mo+Al+Si+V)≦9.0 percent by weight.