摘要
采用单辊快淬法制备了Fe_(76)Zr_(12)B_(12)和Fe_(75)Zr_(12)B_(12)Cu_(1)两种非晶合金,对两种非晶合金进行不同温度的等温热处理。利用差示扫描量热仪(DSC)、X射线衍射仪(XRD)和振动样品磁强计(VSM)等分析了两种合金的晶化曲线、晶化相及磁性,研究Cu添加对Fe_(76)Zr_(12)B_(12)合金热稳定性、晶化过程和磁性能的影响。结果表明:Cu的添加增加了Fe_(76)Zr_(12)B_(12)非晶合金的晶化激活能,提高了该非晶合金的热稳定性。两种合金在晶化初期,除了α-Fe相析出,均有ZrB等其他晶化产物析出;高温热处理后,含Cu合金中析出化合物的含量明显高于未添加Cu的合金。Cu的添加没有起到简化Fe_(76)Zr_(12)B_(12)非晶合金晶化过程的作用,但Cu的添加减小了合金中α-Fe相的平均晶粒尺寸。当两种非晶合金的热处理温度高于823 K时,矫顽力(Hc)均明显增大。
Fe_(76)Zr_(12)B_(12)and Fe_(75)Zr_(12)B_(12)Cu1 amorphous alloys were prepared by single roll rapid quenching method,and then the two amorphous alloys were treated at different temperatures.The crystallization curves,crystalline phases and magnetic properties of the two alloys were analyzed by differential scanning calorimeter(DSC),X-ray diffractometer(XRD)and vibrating sample magnetometer(VSM).The effect of Cu addition on the thermal stability,crystallization and magnetic property of the Fe_(76)Zr_(12)B_(12)alloy was studied.The results show that the addition of Cu increases the crystallization activation energy of the Fe_(76)Zr_(12)B_(12) amorphous alloy and improves its thermal stability.At the initial stage of crystallization,exceptα-Fe phase precipitates,and other crystallization products such as ZrB precipitate.After high temperature heat treatment,the content of precipitated compounds in the alloy containing Cu is significantly higher than that of the alloy without Cu.The addition of Cu does not simplify the crystallization of the Fe_(76)Zr_(12)B_(12)amorphous alloy,but the addition of Cu reduces the average grain size ofα-Fe phase.When the two amorphous alloys are heat treated at higher than 823 K,the coercivity(H_(c))increases significantly.
作者
于万秋
田博
刘尧棣
YU Wan-qiu;TIAN Bo;LIU Yao-di(College of Physics,Jilin Normal University,Siping 136000,China;Director of Innovation and Entrepreneurship Education Training Center,Jilin Normal University,Siping 136000,China)
出处
《材料热处理学报》
CAS
CSCD
北大核心
2022年第10期145-150,共6页
Transactions of Materials and Heat Treatment
基金
吉林省教育厅科学技术研究规划项目(JJKH20210451KJ)
吉林师范大学博士科研启动项目2021。
