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FE-BASED SOFT MAGNETIC ALLOY AND METHOD FOR MANUFACTURING THE SAME

  • US 20200135370A1
  • Filed: 10/21/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/25/2018
  • Status: Active Grant
First Claim
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1. An iron (Fe)-based soft magnetic alloy, comprising:

  • carbon (C) and sulfur (S) meeting 1≥

    a+b≥

    6, wherein a is an atomic % content of C and b is an atomic % content of S;

    boron (B) meeting 4.5≥

    x≥

    13.0, wherein x is an atomic % content of B;

    copper (Cu) meeting 0.2≥

    y≥

    1.5, wherein y is an atomic % content of Cu;

    aluminum (Al) meeting 0.5≥

    z≥

    2, wherein z is an atomic % content of Al; and

    a remaining atomic % content of Fe and other inevitable impurities, whereinthe Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with an average grain size ranging from 15 nm to 50 nm in an amorphous base.

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