Trace rare earth element-containing iron-based nanocrystalline alloy

Abstract

The present invention belongs to the field of preparation purify iron-base non-crystal and nanometer crystal alloy material, and is especially one kind of iron-base non-crystal and nanometer crystal alloy material with mixed non-crystal and nanometer crystal and non-crystal texture and containing small amount of RE element. The non-crystal and nanometer crystal alloy material has the chemical components including Si 7-9 wt%, B 1.5-2.5 wt%, Cu 1-2 wt% Mo and/or Nb plus Co 4-9 wt%, and Ce as RE element 0.001-0.5 wt%, except Fe. The iron-base non-crystal and nanometer crystal alloy material has reasonable composition, simple preparation process, and high comprehensive performance.

Description

technical field [0001] The invention belongs to the field of preparation of iron-based amorphous nanocrystalline alloy materials. It is especially suitable for iron-based nanocrystalline alloy materials with nanocrystalline and amorphous mixed structure and containing trace rare earth elements. Background technique [0002] In the prior art, iron-based amorphous and nanocrystalline alloy materials have been developed for more than ten years. For example, Japanese Patent Publication JP62-167852 and U.S. Patent No. 4,881,989 both disclose a novel iron-based amorphous and nanocrystalline alloy material, and the chemical composition expression of the material is: [0003] (Fe 1-a m a ) 100-x-y-z-α-β-γ Cu x Si y B z M' α M″ β x γ [0004] In the material expression, M is at least one of Co and Ni; [0005] M' is at least one of Nb, W, Ta, Zr, Hf, Ti and Mo; [0006] M″ is at least one of V, Cr, Mn, Al, platinum group elements, Sc, Y, rare earth elements, ...

AI Technical Summary

Problems solved by technology

Although this type of iron-based nanocrystalline alloy has good toughness, because these two types of materials contain more easily oxidized elements such as Zr or Y, the alloy material of this type of iron-based nanocrystalline can only be The processing of blowing and tape-making in a vacuum-protected environment is difficult and limits industrialized large-scale production and development.

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