Document Type

Conference Proceeding

Conference

ASME 2003 International Mechanical Engineering Congress and Exposition

Publication Date

2003

DOI

10.1115/IMECE2003-43140

City

Washington, DC

Abstract

The objective of the work presented is characterization of the magnetoelastic transduction properties of single crystal and textured polycrystalline Fe-Ga alloys (Galfenol) under controlled mechanical, magnetic and thermal conditions. Polycrystalline samples of interest include a directionally solidified specimen, which possesses a favorable saturation magnetostriction output, and an extruded specimen, whose magnetostriction properties were significantly reduced by annealing. A brief discussion of the thermally controlled transducer used for the magnetic testing is presented first. Thereafter, the single crystal response to major-loop cyclic magnetic fields under different temperature and stress conditions, as well as its response to minor-loop cyclic magnetic fields and major-loop cyclic stress is examined. Next, the magnetic and magnetostrictive responses to major-loop cyclic magnetic field conditions are compared for the directionally solidified, extruded and single crystal specimens. The paper concludes with a magnetic characterization summary of the different Fe-Ga alloys examined.

Comments

This article is from ASME 2003 International Mechanical Engineering Congress and Exposition 68 (2003): pp. 273-280, doi:10.1115/IMECE2003-43140

http://dx.doi.org/10.1115/IMECE2003-43140

Copyright Owner

American Society of Mechanical Engineers

Language

en

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