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

Volume

45

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

2499

Lastpage

2502

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);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2018673

Filename

4957694