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Magnetostrictive Damping to Reduce Noise and Vibrations

Published online by Cambridge University Press:  16 February 2011

A. Karimi ,
P. H. Giauque  and
J. L. Martin
A. Karimi
Affiliation:
Institut de Génie Atomique, Ecole Polytechnique Fédérale de Lausanne CH-1015 Lausanne, (Switzerland)
P. H. Giauque
Affiliation:
Institut de Génie Atomique, Ecole Polytechnique Fédérale de Lausanne CH-1015 Lausanne, (Switzerland)
J. L. Martin
Affiliation:
Institut de Génie Atomique, Ecole Polytechnique Fédérale de Lausanne CH-1015 Lausanne, (Switzerland)
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Abstract

The magnetomechanical damping capacity of cast and thermally sprayed Fe-Cr based alloys has been investigated using free and forced vibration techniques. The coatings were deposited using a vacuum plasma spraying method and the cast alloys were prepared in a high frequency furnace under an argon atmosphere. Three laboratory devices including a torsion pendulum, a resonant bar and a cantilever were used to cover a wide range of frequencies and amplitudes varying between f = 1Hz to 10 kHz, and ε = 10−6 to 10−3. The damping capacity of the plasma sprayed coatings was found to be comparable to that of cast alloys. Appropriate heat treatments improved the damping capacity of both coatings and cast alloys by several times. The variation of the loss factor as function of the vibration amplitude showed a maximum, but versus frequency exhibited a slightly monotonous character. The magnetic domains were observed using the magneto-optical Kerr effect and their modification under heat treatments was associated with different values of the damping capacities.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 360 , 1994 , 353
Copyright
Copyright © Materials Research Society 1995

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References

1.Cochardt, A.W.; J. Appl. Mech. 20, 196–200 (1953).Google Scholar
2.Smith, G.W. and Birchak, J.R.; J. Appl. Phys., 40(13), 5174–5178 (1969).Google Scholar
3.Roberts, J.T.A. and Barrand, P., Acta Met. 17, 1685–1692 (1967).Google Scholar
4.Degauque, J. and Astie, B.; Phys. Stat. Sol. (a) 59, 805–816 (1980).Google Scholar
5.Humbeeck, J. Van; in Proc. Int. Symp. on Role of Interfaces on Material Damping. 13 - 17 Octobre 1985, Toronto, Ontario, Canada, ASM's Materials Week and TMS/AIME Fall Meeting, edited by Rath, B.B. and Misra, M.S., American Society for Metals, 5–24 (1986).Google Scholar
6.Berry, B.S. and Pritchet, W.C.; J. Appl. Phys. 47(7), 3295–3301 (1976).Google Scholar
7.Coronel, V.F. and Bechers, D.N.; J. Appl. Phys. 64(4), 2006–2015 (1988).Google Scholar
8.Ganganna, H.V., Fiore, N.F. and Cullity, B.D.; J. Appl. Phys. 42(13), 5792–5797 (1971).Google Scholar
9.Masumoto, H., Sawaya, S. and Hinai, M.; Trans JLM, 20, 409–413 (1979).Google Scholar
10.Schneider, W., Schrey, P., Hausch, G. and Török, E.; Journal de Physique, C5, N° 10(42), 635–639 (1981).Google Scholar
11.Amano, K., Sahashi, M., Tokoro, H. and Nakagawa, M.; Proc, 6th Int. Conf. on Internal Friction and Ultrasonic Attenuation in Solids, July 4 - 7, 1977, Tokyo, edited by Hasiguti, R.R. and Mikoshika, N., University of Tokyo Press, 763-768 (1977).Google Scholar
12.Ferguson, D.B.; Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships applications, M.S. Thesis, Nval Postgraduate School, Monterey, California (1988).Google Scholar