TY - JOUR
T1 - Microstructure and properties of nanocrystalline Fe-Zr-Nb-B soft magnetic alloys with low magnetostriction
AU - Wu, Y. Q.
AU - Bitoh, T.
AU - Hono, K.
AU - Makino, A.
AU - Inoue, A.
PY - 2001/11/14
Y1 - 2001/11/14
N2 - We have investigated the microstructure-property relationship of nanocrystalline Fe85Zr1.2Nb5.8B8 and Fe85.5Zr2Nb4B8.5 soft magnetic alloys in order to understand the origin of drastic change in the permeability regardless of the zero magnetostriction in these two alloy compositions. Plan-view and cross-section transmission electron microscopy (TEM) observations showed strongly textured α-Fe particles on the free surface of the Fe85Zr1.2Nb5.8B8 alloy ribbon, while uniform nanocrystalline microstructure was observed in the Fe85.5Zr2Nb4B8.5 alloy ribbon. The high Zr content of the latter improves the glass forming ability, thereby suppressing the surface crystallization, resulting in higher permeability. By adding Cu in the Fe-Zr-Nb-B alloy, uniform nanocrystalline microstructure was obtained, from which superior soft magnetic properties with zero magnetostriction was achieved.
AB - We have investigated the microstructure-property relationship of nanocrystalline Fe85Zr1.2Nb5.8B8 and Fe85.5Zr2Nb4B8.5 soft magnetic alloys in order to understand the origin of drastic change in the permeability regardless of the zero magnetostriction in these two alloy compositions. Plan-view and cross-section transmission electron microscopy (TEM) observations showed strongly textured α-Fe particles on the free surface of the Fe85Zr1.2Nb5.8B8 alloy ribbon, while uniform nanocrystalline microstructure was observed in the Fe85.5Zr2Nb4B8.5 alloy ribbon. The high Zr content of the latter improves the glass forming ability, thereby suppressing the surface crystallization, resulting in higher permeability. By adding Cu in the Fe-Zr-Nb-B alloy, uniform nanocrystalline microstructure was obtained, from which superior soft magnetic properties with zero magnetostriction was achieved.
KW - Amorphous materials
KW - Atom probe
KW - Nanocrystalline materials
KW - Soft magnetic
KW - Transmission electron microscopy (TEM)
UR - http://www.scopus.com/inward/record.url?scp=0035860871&partnerID=8YFLogxK
U2 - 10.1016/S1359-6454(01)00274-9
DO - 10.1016/S1359-6454(01)00274-9
M3 - Article
AN - SCOPUS:0035860871
SN - 1359-6454
VL - 49
SP - 4069
EP - 4077
JO - Materials Science and Engineering Faculty Research & Creative Works
JF - Materials Science and Engineering Faculty Research & Creative Works
IS - 19
ER -