Landolt-Börnstein - Group III Condensed Matter

7.2.1.4 bcc-type magnet alloys with a simple precipitation (Fe-Co-Mo and Fe-Co-W alloys)

Abstract

This chapter talks about bcc-type magnet alloys with a simple precipitation (Fe-Co-Mo and Fe-Co-W alloys). These magnet alloys exhibit an appreciable increase in the coercivity as compared to the conventional early steel magnets. Survey of permanent magnet properties of Fe-Co-MO and Fe-Co-W alloys as dependent on the preparation technique is tabulated. Isothermal equilibrium phase diagrams of the Fe-Co-Mo and Fe-Co-W alloy systems are given. Vertical sections of the phase diagrams, hysteresis loops, influence of aging time on the coercive force, influence of annealing temperature on the permanent magnet properties and on the Brinell hardness, electrical conductivity and density of Fe-Co-W are figured out. Optimum permanent magnet properties as dependent on composition, demagnetization curves, energy products, and reversible magnetic permeability on a recoil curve, and relation between remanent induction and coercive force of Fe-Co-Mo are plotted.

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Title
7.2.1.4 bcc-type magnet alloys with a simple precipitation (Fe-Co-Mo and Fe-Co-W alloys)
Book Title
Magnetic Alloys for Technical Applications. Hard Magnetic Alloys
In
7.2.1 Magnet alloys based on 3d elements
Book DOI
10.1007/b41058
Chapter DOI
10.1007/10028076_14
Part of
Landolt-Börnstein - Group III Condensed Matter
Volume
19I2
Editors
  • H. P. J. Wijn
  • Authors
  • T. Nakamichi
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