Relationship between Microstructures and Soft Magnetic Properties of Simultaneously P and Cu-Added Fe-Nb-B Ribbon Alloys
Relationship between Microstructures and Soft Magnetic Properties of Simultaneously P and Cu-Added Fe-Nb-B Ribbon Alloys
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DOI：
10.2320/matertrans.mra2008134
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发表时间：
2008-08
影响因子：
1.2
通讯作者：
K. Yubuta;Enrico Mund;A. Makino;A. Inoue
中科院分区：
文献类型：
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作者：
K. Yubuta;Enrico Mund;A. Makino;A. Inoue
从微观结构的角度研究了P和Cu对Fe-Nb-B纳米晶软磁合金磁性能的附加作用。Fe 83.8 Nb 6.6 B 9.6和Fe 83.7 Nb 6.6 B 8.6 P 1 Cu 0.1薄带合金的α Fe晶粒平均尺寸约为8.5 nm，采用椭圆近似法计算的α Fe晶粒尺寸分布分别为0.391和0.236。用两相随机各向异性模型计算了Fe83.8Nb6.6B9.6和Fe83.7Nb6.6B8.6P1Cu0.1合金的矫顽力，计算值分别为6.73和4.93A·m-1，实测值分别为8.64和3.74A·m-1。这种改善可能是由于同时加入α-Fe降低了晶化组织中α-Fe晶粒尺寸的分布。
The additional effect of P and Cu on the magnetic properties of Fe-Nb-B nanocrystalline soft magnetic alloys was investigated from the viewpoint of microstructures. Mean size of α-Fe grain for both Fe 83.8 Nb 6.6 B 9.6 and Fe 83.7 Nb 6.6 B 8.6 P 1 Cu 0.1 ribbon alloys are measured to be about 8.5 nm, and size distribution of those are measured to be 0.391 and 0.236, respectively, using an oval approximation for shape of α-Fe grains. Values of coercivity for Fe 83.8 Nb 6.6 Β 9.6 and Fe 83.7 Nb 6.6 Β 8.6 P 1 Cu 0.1 alloys calculated using a two-phase random anisotropy model are 6.73 and 4.93 A·m -1 , and measured ones are 8.64 and 3.74 A·m -1 , respectively. The improvement probably originates from the decrease in the distribution of the α-Fe grain size in the crystallized structure by the simultaneous addition.