CAJ | 학술논문

利用单辊熔体急冷法制备出 Fe52 Co34 Zr7 B6 Cu1非晶合金薄带.利用中频脉冲磁场对淬态非晶合金进行磁脉冲处理,并利用自制的磁致伸缩系数测量系统和穆斯堡尔谱对脉冲磁场处理前后的非晶样品进行测量.结果表明,脉冲磁场处理后的样品发生了纳米晶化现象,晶化相主要为α-FeCo.随着脉冲磁场的增大,磁致伸缩系数出现了先减后增的变化,说明处理后的双相合金的磁学性能对于脉冲磁场的处理具有选择性.穆斯堡尔谱仪测试表明,试样经过脉冲磁场处理后整体上仍表现出明显的非晶态特征,随着脉冲磁场的增强,晶化量的百分比分别为9．9％,17．2％和28．3％.
이용단곤용체급랭법제비출 Fe52 Co34 Zr7 B6 Cu1비정합금박대.이용중빈맥충자장대쉬태비정합금진행자맥충처리,병이용자제적자치신축계수측량계통화목사보이보대맥충자장처리전후적비정양품진행측량.결과표명,맥충자장처리후적양품발생료납미정화현상,정화상주요위α-FeCo.수착맥충자장적증대,자치신축계수출현료선감후증적변화,설명처리후적쌍상합금적자학성능대우맥충자장적처리구유선택성.목사보이보의측시표명,시양경과맥충자장처리후정체상잉표현출명현적비정태특정,수착맥충자장적증강,정화량적백분비분별위9．9％,17．2％화28．3％.
Fe5 2 Co34 Zr7 B6 Cu1 amorphous alloys thin strip were prepared by single-roller-quenching method.We treated Fe-based amorphous alloys by mid frequency pulse magnetic field.Fe-based amorphous samples before and after treated were measured by homemade magnetostrictive coefficient measurement system and M?ssbauer spectroscopy.The results indicated that amorphous strip were nanocrystallized after treated by pulse magnetic field and crystalline phase mainly α-FeCo.Magnetostrictive coefficient changed first decrease and then increase with the pulsed magnetic field increased.It indicated that the magnetic properties of dual phase alloy for pulsed magnetic field was selective.The results of M?ssbauer tests indicated that the sample after pulsed magnetic field treated still showed obvious amorphous characteristics and the percentage of the amount of crystallization were 9.9%,17.2% and 28.3% with the enhancement of pulsed magnetic fields.