Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1988-04-12
1989-09-12
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148122, H01F 104
Patent
active
048656577
ABSTRACT:
A rapidly quenched Fe-Si alloy containing 6 to 7 wt % Si is heat treated to promote and control an order-disorder reaction, thereby improving its ac core loss and exciting power at induction levels above B=1.2 T. The alloy has a substantially <100> texture, a grain size of about 1 to 2 mm, a B2 domain size of 100 to 850 nm, a DO3 domain size of about 5 to 25 nm, an ac core loss of about 1.2 to 1.6 W/kg and an exciting power of about 15 to 46 VA/kg, the core loss and exciting power being measured at an induction level of B=1.4 T and a frequency of f=60 Hz.
REFERENCES:
patent: 4257830 (1981-03-01), Tsuya et al.
patent: 4265682 (1981-05-01), Tsuya et al.
Arai et al., "Grain Growth of Rapid Quenching High Silicon Iron Alloys", IEEE Trans. on Magnetics, vol. MAG 5, Sep. 1984, pp. 1463-1465.
K. I. Arai, H. Tsutsumitake, K. Ohmori. "Grain Growth and Texture Formation by Annealing of Rapidly Quenched High Silicon-Iron Alloy." Transactions of the Japan Institute of Metals, vol. 25, No. 12 (1984), pp. 855-862.
C. F. Chang, R. L. Bye, V. Laxmanan, S. K. Das. "Texture and Magnetic Properties of Rapidly Quenched Fe-6.5 wt. % Si Ribbon." Transactions on Magnetics, vol. MAG-20, No. 4, Jul. 1984, pp. 553-558.
"Rapidly Solidified Materials,"0 ed. by P. W. Lee and R. S. Carbonara, pp. 273-281. American Society for Metals, Ohio (1986).
T. Miyazaki, T. Kozakai, T. Tsuzuki. "Phase Demopositions of Fe-Si-Al Ordered Alloys." Journal of Materials Science 21, (1986), pp. 2557-2564.
K. Narita, M. Enokizono, "Effect of Ordering on Magnetic Properties of 6.5-Percent Silicon-Iron Alloy." Transactions on Magnetics, vol. MAG-15, No. 1, Jan. 1979, pp. 911-915.
M. J. Tenwick, H. A. Davies, "The Structure and Properties of Rapidly Solidified Fe-3 to 9.3 wt. % Si Alloys." International Journal of Rapid Solidification, 1984-85, vol. 1, pp. 143-155.
Bye, Jr. Richard L.
Chang Chin-Fong
Das Santosh K.
LandOfFree
Heat treatment of rapidly quenched Fe-6.5 wt % Si ribbon does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heat treatment of rapidly quenched Fe-6.5 wt % Si ribbon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat treatment of rapidly quenched Fe-6.5 wt % Si ribbon will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-913595