articleScientific ReportsMar 15, 2013GOLD OA

High-entropy Alloys with High Saturation Magnetization, Electrical Resistivity and Malleability

YZYong ZhangTZTingting ZuoYCYongqiang ChengPKPeter K. Liaw

University of Science and Technology Beijing · Oak Ridge National Laboratory · +1 more institution

PubMed
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Abstract

Soft magnetic materials (SMMs) find important applications in a number of areas. The diverse requirements for these applications are often demanding and challenging for the design and fabrication of SMMs. Here we report a new class of FeCoNi(AlSi)x (0 ≤ x ≤ 0.8 in molar ratio) SMMs based on high-entropy alloys (HEAs). It is found that with the compositional and structural changes, the optimal balance of magnetic, electrical, and mechanical properties is achieved at x = 0.2, for which the combination of saturation magnetization (1.15 T), coercivity (1,400 A/m), electrical resistivity (69.5 μΩ·cm), yield strength (342 MPa), and strain without fracture (50%) makes the alloy an excellent SMM. Ab initio…

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Topics & keywords

Topics
Keywords
  • Coercivity
  • Materials science
  • High entropy alloys
  • Electrical resistivity and conductivity
  • Saturation (graph theory)
  • Alloy
  • Fabrication
  • Condensed matter physics
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