Microstructures and soft magnetic properties of nanocrystalline Fe₈₆B₁₃Cu₁ alloy annealed by hot isothermal pressing

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• 作者：Jiancheng Tang ; Dangping Hu ; Zhongzhi Tai ; Baiyun Huang ; Wensheng Liu
• 关键词：Nanocrystalline materials ; Microstructure ; Magnetic properties ; Hot isothermal pressing
• 刊名：Journal of Alloys and Compounds
• 出版年：2010
• 出版时间：18 March 2010
• 年：2010
• 卷：493
• 期：1-2
• 页码：134-136
• 全文大小：320 K

文摘

Hot isothermal pressing (HIP) was used to anneal amorphous Fe₈₆B₁₃Cu₁ ribbons. It is shown that HIP has important influences on the microstructures and magnetic properties of nanocrystalline Fe₈₆B₁₃Cu₁ ribbons. The precipitation of Fe₃B phase is suppressed when the pressure is more than 100 MPa. The grain size of α-Fe decreases with increasing the pressure from ambient pressure to 200 MPa. The volume fraction of crystalline α-Fe phase increases with increasing the pressure from ambient pressure to 150 MPa, and then decreases with further increase. The sample annealed by HIP under the pressure of 150 MPa exhibits a high saturation magnetization of 1.94 T and a low coercive force of 12 A/m.