Magnetostrictive Properties of Galfenol Alloys Under Compressive Stress
نویسندگان
چکیده
منابع مشابه
Mechanical properties of magnetostrictive iron-gallium alloys
Single crystal specimens of Fe-17 at. % Ga were tested in tension at room temperature. Specimens with a tensile axis orientation of [110] displayed slip lines on the specimen faces corresponding to slip on the {110}with a critical resolved shear stress of 220 MPa. Yielding began at 0.3% elongation and 450 MPa. An ultimate tensile strength of 580 MPa was observed with no fracture occurring throu...
متن کاملMagnetic domains in magnetostrictive Fe–Ga alloys
Lorentz microscopy was applied to the observation of magnetic domains in iron-gallium (Fe–Ga) alloys. Results did not show any link between the magnetic domains and the magnetostriction enhancement by Ga addition, but did reveal that the drastic decrease in magnetostriction for Fe–31.2 at. % Ga was due to the presence of large scale precipitates. Magnetic domain features did not change in the a...
متن کاملDevelopment of a Galfenol Magnetostrictive Linear Motor with Low Driving Voltage
A Galfenol driven miniature linear motor was developed in this paper. The proposed motor realized the micro stepping motion and based on the inertia impact and friction force. At first, the principle of impact driving mechanism was introduced, with the discussion of the structure of the given motor. Then, the analysis of the motor’s impedance property and shaft displacement was presented by sim...
متن کاملLarge-scale first-principles determination of anisotropic mechanical properties of magnetostrictive Fe–Ga alloys
Magnetostrictive Fe1 xGax alloys, as a new class of smart materials, have great potential in sensing and actuator applications. However, the fundamental understanding of the anisotropic elastic responses at high Ga concentration remains one of the most challenging problems for the binary alloys. Here, we apply the density functional theory and large-scale ab initio molecular dynamics simulation...
متن کاملExperimental Study on Properties of Methane Diffusion of Coal Block under Triaxial Compressive Stress
Taking the standard size coal block samples defined by ISRM as research objects, both properties of methane diffusion of coal block under triaxial compressive stress and characteristic influences caused by methane pressure were systematically studied with thermo-fluid-solid coupling with triaxial servocontrolled seepage equipment of methane-containing coal. The result shows the methane diffusio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: MATERIALS TRANSACTIONS
سال: 2002
ISSN: 1345-9678,1347-5320
DOI: 10.2320/matertrans.43.881