MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Elastic and Superelastic Properties of NiFeCoGa Fibers Grown by Micro-Pulling-Down Method
K. OikawaR. SaitoK. AnzaiH. IshikawaY. SutouT. OmoriA. YoshikawaV. A. ChernenkoS. BesseghiniA. GambardellaR. KainumaK. Ishida
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2009 Volume 50 Issue 4 Pages 934-937

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Abstract

Low-frequency elastic modulus, internal friction, tensile stress-strain loops, and thermally-induced strain recovery of single-crystal fibers obtained by pulling-down method from the melts of NiFeGaCo alloys were studied. A minimum of the elastic modulus and the maximum peak of the internal friction were obtained at the martensitic transition temperature. A large super-elastic strain of about 10% was obtained in the fiber of the Ni49Fe18Ga27Co6 alloy. Thermodynamic estimation by the Clausius-Clapeyron equation was consistent with the experimental results.

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© 2009 The Japan Institute of Metals and Materials
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