Open AccessA PRELIMINARY STUDY OF THE MAGNETIC PROPERTIES AND STRUCTURES OF Ni-Fe-Nb AND Ni-Fe-Nb-Al ALLOYS
Author(s) -
Lizhi Dai,
Junjian Wang,
Hou De-Hui
Publication year - 1978
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.27.260
Subject(s) - materials science , permalloy , alloy , coercivity , electrical resistivity and conductivity , vickers hardness test , metallurgy , condensed matter physics , microstructure , magnetic field , magnetization , physics , engineering , quantum mechanics , electrical engineering
The magnetic properties of two kinds of alloys (Ni-Pe-Nb and Ni-Pe-Nb-Al) after various heat-treatments are studied. The initial and maximum permeabilities are high and can be compared with those of the technical Mo-permalloys. Some of the physical parameters of Ni-Pe-Nb and 4Mo-permalloy are tabulated here for comparison.The quaternary Ni-Pe-Nb-Al alloy possesses higher Vickers hardness and electrical resistivity. Curves of a. c. magnetic permeabilities of the Ni-Pe-Nb-Al alloy specimens are presented.In the specimens of Ni-Pe-Nb-Al after slow cooling from high temperature, modulated structures are developed with a wave-length of about 160?. Eapid cooling from 970℃ suppresses the formation of the modulated structure. The material with a modulated structure possesses higher hardness as well as higher coercive force.