CAJ | 학술논문

采用单辊快淬法制备合金薄带Fe74CoxY6-xB20(粒子数分数x=2，3，4)合金系，取不同的温度对合金进行热处理，用X射线衍射（XRD），差热分析仪（DSC），振动样品磁强计（VSM）等测试手段对样品的晶化过程、热性能和磁性能进行研究。结果表明：制备的Fe74CoxY6–xB20均为非晶合金，Fe74CoxY6-xB20(x=2，3，4)非晶合金的晶化激活能分别为473.7，583.0和570.1 kJ/mol，Fe74Co3Y3B20非晶合金热稳定性最好。非晶合金Fe74CoxY6-xB20(x=2，3，4)的饱和磁化强度MS分别为110，105和109 A·m2·kg–1，矫顽力都较低，适量地添加Co提高了合金的非晶形成能力和磁性能。
채용단곤쾌쉬법제비합금박대Fe74CoxY6-xB20(입자수분수x=2，3，4)합금계，취불동적온도대합금진행열처리，용X사선연사（XRD），차열분석의（DSC），진동양품자강계（VSM）등측시수단대양품적정화과정、열성능화자성능진행연구。결과표명：제비적Fe74CoxY6–xB20균위비정합금，Fe74CoxY6-xB20(x=2，3，4)비정합금적정화격활능분별위473.7，583.0화570.1 kJ/mol，Fe74Co3Y3B20비정합금열은정성최호。비정합금Fe74CoxY6-xB20(x=2，3，4)적포화자화강도MS분별위110，105화109 A·m2·kg–1，교완력도교저，괄량지첨가Co제고료합금적비정형성능력화자성능。
Amorphous alloys Fe74CoxY6–xB20 (x=2, 3, 4) were prepared by melt-spinning technique. Alloys were annealed at different temperatures. The thermal stability,crystalline process and magnetic property of amorphous alloys were studied by scanning calorimeter (DSC), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results show that all of samples are amorphous alloy. The crystallization activation energy of Fe74CoxY6–xB20 (x=2, 3, 4) are 473.7, 583.0 and 570.1 kJ/mol. Among all the amorphous alloys, Fe 74 Co 3 Y 3 B 20 has the best thermal stability. The saturation magnetizations(MS)of Fe74CoxY6–xB20 (x=2, 3, 4) are 110,105 and 109 A·m2·kg–1, respectively. The coercivity of samples are very small. Suitable addition of Co can enhance the glass forming ability and magnetic property of the alloys.