Crystallization behavior and magnetic properties in High Fe content FeBCSiCu alloy system
Crystallization behavior and magnetic properties in High Fe content FeBCSiCu alloy system
复制标题
高 Fe 含量 FeBCSiCu 合金体系的结晶行为和磁性能
DOI：
10.1016/j.jmmm.2015.03.033
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发表时间：
2015
影响因子：
2.7
通讯作者：
B.L. Shen
中科院分区：
文献类型：
--
作者：
X.D. Fan;B.L. Shen
以提高饱和磁通密度为目的，采用快淬非晶薄带退火工艺制备了高Fe含量的FeBCSiCu纳米晶合金。XRD和TEM分析表明，Cu的加入抑制了Fe 86 B7 C7合金的表面晶化，提高了其非晶形成能力。由Kissinger方程计算的晶化激活能表明，Cu和Si的加入均促进了α-Fe相的析出，提高了合金的热稳定性。VSM和直流B-H环测试表明，Fe 85.5B7C6Si1Cu 0.5纳米晶合金具有1.8T的高饱和磁通密度和10A/m的低矫顽力，交流B-H分析仪测试表明，该合金在1 T、50 Hz下具有0.35W/kg的低铁损。Fe_（85.5）B_7C_6Si_（11）Cu_（0.5）纳米晶合金具有较低的原料成本和方便的生产工艺，是一种经济的工业应用材料。
High Fe content FeBCSiCu nanocrystalline alloys are prepared by annealing melt-spun amorphous ribbons with aim at increasing saturation magnetic flux density. Microstructures identified by XRD and TEM reveal that Cu addition inhibits the surface crystallization of Fe86B7C7alloy and improve its glass-forming ability. Activation energy of crystallization calculated by Kissinger's equation indicates that both Cu and Si addition promotes the precipitation of α-Fe phase and improves the thermal stability. VSM andDC B–Hloop tracer measurements show that the Fe85.5B7C6Si1Cu0.5nanocrystalline alloy exhibits high saturation magnetic flux density of 1.8 T and low coercivity of 10 A/m, respectively.ACproperties measured byAC B–Hanalyzer show this alloy exhibits low core loss of 0.35 W/kg at 1 T at 50 Hz. Low material cost and convenient productivity make the Fe85.5B7C6Si1Cu0.5nanocrystalline alloy an economical application in industry.