Magnetostriction in a Co-30% Fe alloy

Author

Chen, L.H. ; Mavoori, H. ; Klemmer, T. ; Jin, S.

Author_Institution

Dept. of Mater. Eng., I-Shou Univ., Kaohsiung, Taiwan

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3835

Lastpage

3837

Abstract

We have studied the magnetostriction and magnetic properties of a deformed and annealed Co-30% Fe alloy. The cold-rolled and annealed (at 820 C for 40 min) sample exhibits a substantial magnetostriction of ~110×10^-6 at a practical, low field of ~100 Oe, while only ~10×10^-6 for the same applied field is obtained for the as-cold-rolled sample. The saturation magnetostriction of the annealed Co-30%Fe alloy was ~140×10^-6, which is significantly affected by the cold-rolling and annealing processes. This drastic dependence of the magnetostriction behavior on the alloy processing is believed to be a result of the microstructure and residual stress changes brought about by the heat treatment processing

Keywords

annealing; cobalt alloys; cold rolling; crystal microstructure; ferromagnetic materials; internal stresses; iron alloys; magnetostriction; 40 min; 820 C; Co-Fe; CoFe; annealed Co-Fe alloy; cold-rolled sample; cold-rolling; heat treatment processing; magnetic properties; magnetostriction; microstructure; residual stress; saturation magnetostriction; Air pollution; Annealing; Biomembranes; Costs; Electronic noses; Energy consumption; Fiber gratings; Fires; Gas detectors; Magnetic field induced strain; Magnetic materials; Magnetic properties; Magnetostriction; Monitoring; Optical fibers; Optical materials; Optical saturation; Saturation magnetization; Temperature sensors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800681

Filename

800681