Stress annealing of Fe-Ga transduction alloys for operation under tension and compression

Journal Article · Sun May 15 00:00:00 EDT 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1845933· OSTI ID:20711663

Wun-Fogle, M; Restorff, J B; Clark, A E; Dreyer, Erin; Summers, Eric ^[1]

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1. Naval Surface Warfare Center, Carderock Div., West Bethesda, Maryland 20817-5700 (United States)

The addition of Ga to bcc {alpha}-Fe increases the magnetostriction of Fe in the [100] direction (a factor of 12 for Fe{sub 81}Ga{sub 19}). The effect of annealing highly textured polycrystalline Fe{sub 81.6}Ga{sub 18.4} rods under compressive stresses of -100 and -150 MPa for 10-100 min at temperatures between 625 deg. C and 635 deg. C was examined. After annealing, all samples showed nearly full performance at near-zero stresses. Samples annealed with -100 MPa stress maintained a high magnetostriction up to {approx}20 MPa tensile stress; the sample annealed with -150 MPa stress maintained its magnetostriction up to {approx}30 MPa.

• OSTI ID: 20711663
• Journal Information: Journal of Applied Physics, Vol. 97, Issue 10; Conference: 49. annual conference on magnetism and magnetic materials, Jacksonville, FL (United States), 7-11 Nov 2004; Other Information: DOI: 10.1063/1.1845933; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
ANNEALING
BCC LATTICES
COMPRESSION STRENGTH
FERROMAGNETIC MATERIALS
GALLIUM ALLOYS
IRON ALLOYS
IRON-ALPHA
MAGNETOSTRICTION
POLYCRYSTALS
PRESSURE RANGE MEGA PA 10-100
PRESSURE RANGE MEGA PA 100-1000
STRESSES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
TENSILE PROPERTIES