Magnetic Properties of Nanocrystalline Fe-Based Soft Magnetic Alloys

1991 ◽  
Vol 232 ◽  
Author(s):  
Yoshihito Yoshizawa ◽  
Kiyotaka Yamauchi
Keyword(s):  
Magnetic Properties ◽  
Magnetocrystalline Anisotropy ◽  
Magnetic Interaction ◽  
Nanocrystalline Alloys ◽  
Grain Structure ◽  
Boundary Phase ◽  
Ultrafine Grain ◽  
Soft Magnetic ◽  
Soft Magnetic Alloys ◽  
Ultrafine Grain Structure

ABSTRACTMagnetic properties of nanocrystalline alloys produced by crystallization of Fe-Cu-Nb-Si-B amorphous alloys have been investigated. The best result is obtained at the annealing conditions where the main phase is bcc and it is very important to suppress the formation of Fe-B compounds with large magnetocrystalline anisotropy. Homogeneous and ultrafine grain structure has an important effect to improve the magnetic properties. Conclusively, soft magnetic properties of nanocrystalline alloys are related to various factors such as formed phases, ratio of amorphous phase, intrinsic magnetocrystalline anisotropy and magnetic interaction from grain boundary phase.

Magnetic properties of (Fe,Co)-B-Al-Nb alloys with ultrafine grain structure

1994 ◽  
Vol 30 (6) ◽  
pp. 4869-4871 ◽  
Author(s):  
Y.S. Cho ◽  
Y.B. Kim ◽  
C.S. Kim ◽  
K.H. Lee ◽  
T.K. Kim
Keyword(s):  
Magnetic Properties ◽  
Grain Structure ◽  
Ultrafine Grain ◽  
Ultrafine Grain Structure

Grain Refinement and Deformation Behavior of Ultrafine Grained Pd and Pd-Ag Alloys Produced by HPT

2008 ◽  
Vol 584-586 ◽  
pp. 182-187
Author(s):  
Lilia Kurmanaeva ◽  
Yulia Ivanisenko ◽  
J. Markmann ◽  
Ruslan Valiev ◽  
Hans Jorg Fecht
Keyword(s):  
Mechanical Properties ◽  
Deformation Behavior ◽  
Materials Science ◽  
High Pressure Torsion ◽  
Uniform Elongation ◽  
Grain Structure ◽  
Coarse Grained ◽  
Ultrafine Grain ◽  
Ultrafine Grained ◽  
Ultrafine Grain Structure

Investigations of mechanical properties of nanocrystalline (nc) materials are still in interest of materials science, because they offer wide application as structural materials thanks to their outstanding mechanical properties. NC materials demonstrate superior hardness and strength as compared with their coarse grained counterparts, but very often they possess a limited ductility or show low uniform elongation due to poor strain hardening ability. Here, we present the results of investigation of the microstructure and mechanical properties of nc Pd and Pd-x%Ag (x=20, 60) alloys. The initially coarse grained Pd-x% Ag samples were processed by high pressure torsion, which resulted in formation of homogenous ultrafine grain structure. The increase of Ag contents led to the decrease of the resulted grain size and change in deformation behavior, because of decreasing of stacking fault energy (SFE). The samples with larger Ag contents demonstrated the higher values of hardness, yield stress and ultimate stress. Remarkably the uniform elongation had also increased with increase of strength.

FePCCu nanocrystalline alloys with excellent soft magnetic properties

2012 ◽  
Vol 55 (12) ◽  
pp. 3419-3424 ◽  
Author(s):  
YunLong Jin ◽  
XingDu Fan ◽  
He Men ◽  
XinCai Liu ◽  
BaoLong Shen
Keyword(s):  
Magnetic Properties ◽  
Nanocrystalline Alloys ◽  
Soft Magnetic Properties ◽  
Soft Magnetic
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