Iron-base amorphous alloys having improved fatigue and...

C - Chemistry – Metallurgy – 22 – C

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75/1.1

C22C 38/02 (2006.01) C22C 45/02 (2006.01)

Patent

CA 1231558

ABSTRACT OF THE DISCLOSURE An iron-base amorphous alloy is described, having improved fatigue and toughness characteristics consisting essentially of from 6 to 16 atom% Si, from 7.5 to 16 atom% B, and from 2 to 9 atom% Cr, provided that the composition ranges of Si, B, and Cr are within the quadrangles defined by a-b-c-d of Figure 1, and e1-f1-g1-h1 of Figure 2, and the balance being substantially Fe. In addition to improved fatigue and toughness characteristics, the amorphous alloy has excellent tensile break strength, heat resistance, corrosion resistance and electromagnetic properties, and is therefore very useful for industrial reinforcements and electromagnetic materials.

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