Iron-nickel based high permeability amorphous alloy

US5338376A · kind A · utility

Assignee

• CENTRAL IRON AND STEEL RESEARCH INSTITUTE · CN

Inventors

• Goudong Liu · Beijing, CN
• Chuanli Zhang · Beijing, CN
• Hongliang Ma · Beijing, CN
• Shizhen XU · Beijing, CN
• Jingbei Li · Beijing, CN
• Xuecai Li · Beijing, CN
• Lidong Ding · Beijing, CN

Key dates

• Filing date: Jun 3, 1993
• Grant date: Aug 16, 1994
• Expiry date: Jun 3, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C45/02
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

This invention relates to a Fe-Ni based high permeability amorphous alloy consisting of, in atom percent Ni 30-45%, Cr 0.5-1.2%, Si 5-14%, B 5-15%, P 1.0-3.0%, the balance Fe and inevitable impurities. The alloy is made by the rapid quenching melt method. It can be heat-treated in air and the excellent magnetic properties can be obtained as follows: B.sub.10 7900 Gs, B.sub.r 7500 Gs, H.sub.C 0.008 Oe, u.sub.m 68.times.10.sup.4. The present alloy is applied to make various magnetic devices which are used in electric apparatus and equipments.