Title :
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
fDate :
9/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
