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

US8012270B2 · 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: Sep 6, 2011
• Expiry date: Sep 4, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F41/0246
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A soft magnetic alloy consists essentially of 5 percent by weight≦Co≦30 percent by weight, 1 percent by weight≦Cr≦20 percent by weight, 0.1 percent by weight≦Al≦2 percent by weight, 0 percent by weight≦Si≦1.5 percent by weight, 0.017 percent by weight≦Mn≦0.2 percent by weight, 0.01 percent by weight≦S≦0.05 percent by weight where Mn/S is >1.7, 0 percent by weight≦O≦0.0015 percent by weight, und 0.0003 percent by weight≦Ce≦0.05 percent by weight, 0 percent by weight≦Ca≦0.005 percent by weight and the remainder iron, where 0.117 percent by weight≦(Al+Si+Mn+V+Mo+W+Nb+Ti+Ni)≦5 percent by weight.