| 摘要 |
PURPOSE:To obtain a worked material having excellent fatigue characteristics and good dimensional accuracy, by bending an Fe or Co amorphous fine metallic wire within a specific temp. range in a short time. CONSTITUTION:The Fe or Co amorphous metallic fine wire is bended at the strain rate of >=2% to prepare a compression spring, etc. The bending is executed within the temp. range of 300-600 deg.C in the time area of 0.01-10sec. Said method is suitable for preparing a precision small-sized spring having the strength and fatigue characteristics. The compsns. contg., by atom, one ore more kinds of 0.01-75% elements from each group among (1) one or more kinds among P, C, Si, B and Ge, (2) one or two kinds of Fe and Ni, (3) one or more kinds among 0.01-15% Cr, Nb, Ta, V, Mo, W, Ti and Zr and (4) one or more kinds among Mn, Be, Pd, Al, Au, Cu, Zn, Cd, Sn, As, Sb, Hf and Pt with the balance consisting substantially of Fe or Co is preferable as the amorphous fine metallic wire.
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