Amorphous iron based alloy and method of manufacture

Details Amorphous iron based alloy and method of manufacture Amorphous iron based alloy and method of manufacture

C - Chemistry, Metallurgy

22

C

C22C 45/02 (2006.01)

Patent

CA 2148972

Disclosed are an amorphous iron based alloy having excellent magnetic characteristics as well as bendability and a method of manufacturing the amorphous iron based alloy. The amorphous iron based alloy has a mean centerline Ra surface roughness of about 0.8 µm or less and the formula FexBySiZMna in approximate proportions wherein: 75 X 82 at% 7 Y 15 at%, 7 Z 17 at%, and 0.2 a 0.5 at%. The method of manufacturing the amorphous iron based alloy comprises quenching and solidifying a molten alloy having the formula FexBySiZMna in approximate proportions wherein: 75 X 82 at% 7 Y 15 at%, 7 Z 17 at%, and 0.2 a 0.5 at%, and effecting the quenching and solidifying steps in a CO2 atmosphere containing H2 in an amount of about 1- 4% by volume.

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