Mechanical Properties of FeNiGa Alloys in Bulk Form

• Main Authors: Fong-Lin Jhang, 張豐麟
• Other Authors: Wei-Chun Cheng
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/37598463020256993426

碩士 === 國立臺灣科技大學 === 機械工程系 === 102 === Magnetostrictive materials have potential applications to MEMS and other sensing devices, because of their capabilities to convert magnetic energy into mechanical energy, and vice versa. This study focuses on a series of Fe81-XNiXGa19(X =0、4、11、17、22、26) bulk. We examined the bulk components by SEM-EDS. Structural property was investigated by X-ray diffraction (XRD) and magnetic property by vibration sample magnetometer (VSM). Magnetostriction were studied by using strain gauges. Mechanical properties were using by Resonant Frequency &; Damping Analyser (RFDA) at Magnetic field measured. After analyzing via the above-listed instrument, the Fe81-XNiXGa19(X=0,4,11,17,22,26) bulks grow with the <110>&;<220> texture. About resistivity, samples with composition X=4 have larger resistivity. About magnetization, the measured saturation magnetization decrease with increases in Ni for Fe81-xNixGa19 alloys. As to the magnetostrictive part, the magnetostriction value has been decrease when the Nickel increases. In the mechanical properties part, the Young&apos;s modulus and shear modulus increases with the magnetic field becomes larger, the comparative hardness found in 0% Ni and 26% Ni has pretty good mechanical properties.