Abstract: A low-cost, thermomechanical method for manufacturing [001] textured FeGa alloys is described. The method includes hot rolling a FeGa cast ingot to break down the cast structure, a two-stage warm rolling with an intermediate anneal, and then a final texture anneal that resulted in recrystallization and a recrystallization-induced texture. The FeGa ingot contains a grain growth agent that was used to restrain grain growth of the FeGa material in the undesired crystallographic direction. A protective steel sheath can be placed around the FeGa material during processing to avoid direct contact of the FeGa and the rolls during the hot and warm rolling process steps and also avoid oxidation of the alloy ingot. FeGa alloys with a very strong [001] texture and a large magnetostriction along [001] crystallographic direction were obtained using this method. FeGaBe alloys and new methods for making them are also described.

Abstract: Magnetostrictive devices and methods involving a magnetostrictive alloy having; (1) one or more of Pd, and Pt, and (2) one or more of Ni, Co, Fe, where the alloy comprises one or more of PdxNi1?x, PdxFe1?x, PdxCo1?x, PtxNi1?x, PtxFe1?x, PtxCo1?x, where x is less than 1, where magnetostrictive properties and diffusion, and solubility properties than variable in response to variations to a magnetic field to which the alloy is subjected. Devices and methods are used in hydrogen storage, isotopic separation, catalytic systems, actuator/sensor, and other magnetostrictive applications.

Abstract: Magnetostrictive devices and methods involving a magnetostrictive alloy having; (1) one or more of Pd, and Pt, and (2) one or more of Ni, Co, Fe, where the alloy comprises one or more of PdxNi1-x, PdxFe1-x, PdxCo1-x, PtxNi1-x, PtxFe1-x, PtxCo1-x, where x is less than 1, where magnetostrictive properties and diffusion, and solubility properties than variable in response to variations to a magnetic field to which the alloy is subjected. Devices and methods are used in hydrogen storage, isotopic separation, catalytic systems, actuator/sensor, and other magnetostrictive applications.