FeCuNbSiB-La合金带材的非晶形成能力和磁阻抗效应  

Glass forming ability and magneto impedance effect of FeCuNbSiB-La alloy strips

作　　者：郭斌[1] 叶媛秀[2] 蒋达国[2] 敖辉[2] 王志辉[1] 

机构地区：[1]井冈山大学现代教育技术中心,江西吉安343009 [2]井冈山大学数理学院,江西吉安343009

出　　处：《兵器材料科学与工程》2015年第4期23-26,共4页Ordnance Material Science and Engineering

基　　金：江西省教育厅科技资助项目(GJJ14553);江西省自然科学基金资助项目(20151BAB202025);江西省原子与分子物理重点学科资助项目(2011-2015)

摘　　要：将稀土La元素掺杂Fe73.5Cu1Nb3Si13.5B9合金,采用单辊法制备FeCuNbSiB-La合金带材。用DSC和XRD分析带材的非晶形成能力和晶化行为,用阻抗分析仪测试带材的磁阻抗效应。结果表明,淬火态FeCuNbSiB-La合金带材为非晶态结构,经550℃晶化热处理后的FeCuNbSiB-La(1.0%)非晶带材形成了非晶和纳米晶双相共存结构;FeCuNbSiB-La非晶带材的磁阻抗效应随着测试频率的升高和磁场强度的增大而增大,随着稀土La元素含量的增大呈先增大后减小的趋势。Adding La to Fe73.5Cu1Nb3Si13.5B9 alloy,the Fe Cu Nb Si B-La alloy strips modificated were successfully prepared. The glass forming ability and crystallization behavior were analyzed by DSC and XRD,and the magneto impedance effect were tested by impedance analyzer. The results show that the FeCuNbSiB-La alloy strips is an amorphous phase at quenching state,and can crystallize into a two-phase mixture of amorphous and nanocrystalline after 550 ℃ heat treatment when the La content is 1.0%;the magneto impedance increase with the higher frequency and the bigger magnetic field,and first increases and then decreases with the increase of rare-earth content.

关 键 词：FeCuNbSiB-La合金带材 非晶形成能力 晶化行为 磁阻抗效应 

分 类 号：TG139.8[一般工业技术—材料科学与工程]