Amorphous metal alloy strip and method of making such strip

Details Amorphous metal alloy strip and method of making such strip Amorphous metal alloy strip and method of making such strip

C - Chemistry, Metallurgy

22

C

22/167, 75/1.1

C22C 1/00 (2006.01) B22D 11/06 (2006.01) H01F 1/153 (2006.01)

Patent

CA 1174081

ABSTRACT OF THE DISCLOSURE An amorphous metal alloy strip is disclosed having a width greater than about one inch and a thickness less than about 0.003 inch, this alloy consists essentially of 77 to 80 atomic percent iron, 12 to 16 atomic percent boron and 5 to 10 atomic percent silicon with incidental impurities. The strip has a 60 cycle per second core loss of less than about 0.100 watts per pound at 12.6 kilogauss, saturation magnetization of at least 15 kilogauss, and a coercive force of less than about 0.04 oersteds. Such alloy is further characterized by increased castability and the strip produced therefrom exhibits at least singular ductility. A method of producing such optimum strip is also disclosed.

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