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Grain Size Reduction and Magnetic Property of Fe-Pd-Rh Alloys

机译:Fe-Pd-Rh合金的晶粒尺寸减小和磁性

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摘要

Fe-30Pd-2Rh (at%) ferromagnetic shape memory (FSM) alloys were forged to a 40–45% reduction in thickness and thermally annealed at 950 $^{circ}$C–1000 $^{circ}$C 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.
机译:Fe-30Pd-2Rh(at%)铁磁形状记忆(FSM)合金的厚度减小了40-45%,并在950 $ ^ $ C-1000 $ ^ {circ} $ C的温度下进行了热退火次产生重结晶。通过扫描电子显微镜(SEM)观察到晶粒尺寸减小。用振动样品磁力计(VSM)进行的调查显示,在应变锻造样品中,完全重结晶有助于实现高饱和磁化强度和高磁各向异性。高的磁各向异性改善了合金的磁致伸缩性,这可能在磁机械应用中有用。

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