Virtual bound states elements and their effects on magnetic and electrical properties of Fe-Ni based metal amorphous nanocomposites

SCRIPTA MATERIALIA

卷:169

Article

Aronhime, N.¹  Ohodnicki, P.²  McHenry, M. E.¹ 

[1] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[2] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA

关键词: Soft magnetic materials;    Electrical properties;   

DOI  :  10.1016/j.scriptamat.2019.05.003

来源: Elsevier

【 摘 要 】

Metal amorphous nanocomposite alloys, with compositions (Fe70Ni30)(80-x)Nb4Si2B14TEx (0 <= x <= 5), where TE is a transition element, and (Fe70Ni30)(80-y)Nb4+ySi2B14 (0.5 <= y <= 2) were synthesized. Samples were annealed at 440 degrees C and strain-annealed at 440 degrees C and 300 MPa. Resistivity was found to increase with small substitutions of TE elements. Increasing V resulted in reduced B-s from 1.2 T to 0.5 T. Further Mo additions lowered B-s to 0.6 T, and consistently reduced the permeability. For Cr and Nb, resistivity increased, and strain-annealed permeability was lower than the annealed permeability. Lastly, toroidal core losses on (Fe70Ni30)(79.5)Nb4Si2B14V1 yielded W1.0/400 = 2.1 W/kg, and W1.0/1 k = 6.0 W/kg. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free