Title :
Grain Size Reduction and Magnetic Property of Fe-Pd-Rh Alloys
Author :
Lin, Chien-Feng ; Yang, Jin-Bin
Author_Institution :
Dept. of Mech. & Autom. Eng., Nat. Kaohsiung First Univ. of Sci. & Technol., Kaohsiung
fDate :
6/1/2009 12:00:00 AM
Abstract :
Fe-30Pd-2Rh (at%) ferromagnetic shape memory (FSM) alloys were forged to a 40-45% reduction in thickness and thermally annealed at 950degC-1000degC for various times to generate recrystallization. The grain size reduction was observed by scanning electron microscopy (SEM). Investigation with a vibrating sample magnetometer (VSM) revealed that in the strain-forged sample, complete recrystallization contributed high saturated magnetization as well as high magnetic anisotropy. The high magnetic anisotropy improves the magnetostriction of the alloys, which may be useful in magneto-mechanical applications.
Keywords :
annealing; ferromagnetic materials; grain size; iron alloys; magnetic anisotropy; magnetometers; magnetostriction; palladium alloys; recrystallisation; rhodium alloys; scanning electron microscopy; shape memory effects; transmission electron microscopy; FePdRh; ferromagnetic shape memory alloys; grain size reduction; magnetic anisotropy; magnetic property; magnetization; magneto-mechanical applications; magnetostriction; recrystallization; scanning electron microscopy; strain-forged sample; temperature 950 C to 1000 C; thermal annealing; transmission electron microscopy; vibrating sample magnetometer; Fe-Pd-Rh alloys; grain size reduction; magnetic property; scanning electron microscopy (SEM) and transmission electron microscopy (TEM);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2018673
