Fe-containing rare-earth-base amorphous alloy

Abstract

The invention provides a Fe containing rare earth based non-crystal alloy, which is characterized in that the non-crystal alloy consists of Ln, Al, Ni, Cu and Fe elements in atom content percentage: (Ln0.62Al0.14Ni0.1Cu0.12)100-xFex, wherein x is more than 0 and less than or equal to 12, Ln is the rare earth element of La or Gd; particularly when the composition of the non-crystal alloy is close to (Ln0.62Al0.14Ni0.12Cu0.12)97Fe> and (Ln0.62Al0.14Ni0.12Cu0.12)91Fe9, the alloy has the maximum non-crystal forming capability. Compared with the prior rare earth based non-crystal alloy, the non-crystal alloy has higher non-crystal forming capability and lower material cost. The non-crystal alloy material prepared from the non-crystal alloy has better strength and magnetic property, and is widely applied to structural materials and functional materials.

Description

technical field [0001] The invention relates to an Fe-containing rare earth-based amorphous alloy. Background technique [0002] Compared with traditional crystalline alloys, amorphous alloys usually have excellent comprehensive properties, such as high strength, high hardness, high elasticity, good soft magnetic properties, good corrosion resistance, etc., and thus become an important field in material research . In 1960, Duwez and others used the rapid solidification method to prepare Au-Si amorphous alloy flakes for the first time, which opened up extensive research on amorphous alloys. However, the formation ability of the amorphous alloys discovered earlier is low, and the materials capable of forming large-sized amorphous alloys are limited to noble metal-based alloys, which limits the development of the field of amorphous alloys. Since a series of bulk amorphous alloys were successfully developed in the late 1980s, amorphous alloys have attracted more and more atten...

AI Technical Summary

Problems solved by technology

The previous rare earth-based amorphous alloy Ln-Al-Ni-Cu, Ln refers to La or Gd, and the specific composition is Ln 0.62 al 0.14 Ni 0.12 Cu 0.12 , Ln refers to La or Gd, the ability of amorphous formation needs to be improved, for La 0.62 al 0.14 Ni 0.12 Cu 0.12 , the critical diameter of amorphous alloy rods is 10mm (see Tan H, Zhang Y, Ma D, Feng YP, Li Y. Acta Mater2003; 51: 4551.), for Gd 0.62 al 0.14 Ni 0.12 Cu 0.12 , the critical diameter of amorphous alloy rods is less than 1mm (see Ji Yunfei. Research on the formation and properties of rare earth-based bulk amorphous alloys. Beijing: Beijing University of Aeronautics and Astronautics 2005; graduation design thesis), and its comprehensive performance needs to be further developed

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