升温速率对Fe_(79)Zr_8Mo_1B_(12)非晶合金晶化过程及磁性能的影响  

Effect of heating rates on crystallization process and magnetic property of Fe_(79)Zr_8Mo_1B_(12) amorphous alloy

作　　者：于万秋[1,2] 周清雷 华中[1,2] YU Wanqiu;ZHOU Qinglei;HUA Zhong(National Demonstration Center for Experimental Physics Education, Jilin Normal University, Siping 136000, China;Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130000, China)

机构地区：[1]吉林师范大学物理国家级实验教学示范中心,吉林四平136000 [2]吉林师范大学功能材料物理与化学教育部重点实验室,吉林长春130000

出　　处：《兵器材料科学与工程》2018年第3期20-22,共3页Ordnance Material Science and Engineering

基　　金：教育厅"十三五"科学技术研究项目(JJKH20170375KJ);吉林师范大学研究生创新科研计划项目(1201611)

摘　　要：采用单辊快淬法制备Fe_(79)Zr_8Mo_1B_(12)非晶合金薄带,在升温速率为5、20℃/min时对合金进行不同温度的热处理。利用X射线衍射仪(XRD)和振动样品磁强计(VSM)研究不同热处理条件下合金的微观结构及磁性能。结果表明:Fe_(79)Zr_8Mo_1B_(12)非晶合金在两种升温速率下热处理具有完全不同的晶化过程;当升温速率为5℃/min时,初始晶化产物仅为α-Fe(B)相;当升温速率为20℃/min时,初始晶化产物为α-Mn型亚稳相和α-Fe相。晶化产物的不同导致两种速率下合金的矫顽力Hc随热处理温度的升高呈不同趋势。Fe_（79）Zr_8Mo_1B_（12） amorphous alloy prepared by a single roller melt spinning was annealed at different temperatures under the heating rate of 5 and 20 ℃/min,respectively. The microstructure and magnetic property of alloy were investigated by X-ray diffraction（XRD）and vibrating sample magnetometer（VSM）. The results show that the crystallization process is very different between two kinds of heating rate. The initial crystallization product is α-Fe（B）under the heating rate of 5 ℃/min and the initial crystallization products are α-Fe and α-Mn type under the heating rate of 20 ℃/min. The difference in the crystallization products of alloys results in the difference of coercivity（Hc）.

关 键 词：非晶 升温速率 晶化过程 磁性能 

分 类 号：TG132.2[一般工业技术—材料科学与工程]