2009•Journal of Functional BiomaterialsOpen access

Research on properties of magnetostriction NiFe alloy for displacement sensor

Kui Cao

Abstract

Chemical composition is one of the important factors for the Ni-Fe alloy magnetostrictive waveguide wire. Ni-Fe alloy is prepared in medium frequency induction furnace,and the effects of the content of Ni and Fe on magnetic performance,phase structure and metallographic about Ni-Fe alloy are presented ,and analyze the reasons for these changes. The results indicated that when the content of Ni if 43%,magnetostrictive coefficient and strength of magnetic γ-phase is the best,but the coercivity did not change significantly.

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Key concepts: Magnetostriction, Materials science, Alloy, Coercivity, Phase (matter), Metallurgy, Magnetic alloy, Composite material