Cu添加对FeCoZrB非晶合金热稳定性和晶化过程的影响  

Effect of Cu Addition on Thermal Stability and Crystallization Process of FeCoZrB Amorphous Alloy

作　　者：于万秋[1] 田博 王志群 刘尧棣[1,3] 孙亚明 Yu Wanqiu;Tian Bo;Wang Zhiqun;Liu Yaodi;Sun Yaming(National Demonstration Center for Experimental Physics Education,Jilin Normal University,Siping 136000,China;State Grid Economic Research Institute of East Inner Mongolia Electric Power Company Limited,Hohhot 010020,China;Changchun University of Science and Technology,Changchun 130022,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]国网内蒙古东部电力有限公司经济技术研究院,内蒙古呼和浩特010020 [3]长春理工大学,吉林长春130022

出　　处：《稀有金属材料与工程》2022年第5期1735-1740,共6页Rare Metal Materials and Engineering

基　　金：吉林省教育厅项目(JJKH20210451KJ);吉林师范大学大学生国家级创新创业训练计划项目(G2021)。

摘　　要：选择在低B含量的Fe_(42)Co_(42)Zr_(7)B_(9)和高B含量的Fe_(39)Co_(39)Zr_(7)B_(15)合金基础上添加1at%Cu,制备Fe_(41.5)Co_(41.5)Zr_(7)B_(9)Cu_(1)和Fe_(38.5)Co_(38.5)Zr_(7)B_(15)Cu_(1)非晶合金,利用同步热分析仪(STA),X射线衍射(XRD)和透射电镜(TEM)测试分析合金的晶化曲线及晶化相的结构,研究Cu添加对Fe_(42)Co_(42)Zr_(7)B_(9)和Fe_(39)Co_(39)Zr_(7)B_(15)非晶合金热稳定性和晶化过程的影响。结果表明,Cu添加稍微提高了Fe_(42)Co_(42)Zr_(7)B_(9)非晶合金的热稳定性,明显提高了Fe_(39)Co_(39)Zr_(7)B_(15)非晶合金的热稳定性。对于Fe_(42)Co_(42)Zr_(7)B_(9)和Fe_(39)Co_(39)Zr_(7)B_(15)非晶合金,晶化初期XRD存在明显的峰位移动;对于添加Cu后的Fe_(41.5)Co_(41.5)Zr_(7)B_(9)Cu_(1)和Fe_(38.5)Co_(38.5)Zr_(7)B_(15)Cu_(1)合金,晶化过程中几乎没有峰位移动。TEM测试表明Cu添加改善了纳米晶粒分布的均匀度。Cu添加对高B含量Fe_(39)Co_(39)Zr_(7)B_(15)合金热稳定性和晶化过程的影响大于低B含量的Fe_(42)Co_(42)Zr_(7)B_(9)合金。Fe_(41.5)Co_(41.5)Zr_(7)B_(9)Cu_(1) and Fe_(38.5)Co_(38.5)Zr_(7)B_(15)Cu_(1) amorphous alloys were prepared by adding 1at%Cu based on Fe_(42)Co_(42)Zr_(7)B_(9) with low B content and Fe_(39)Co_(39)Zr_(7)B_(15) alloy with high B content.Crystallization curves and structure of crystalline phase of the alloys were tested by synchronous thermal analyzer(STA),X-ray diffraction(XRD)and transmission electron microscope(TEM).The effects of Cu addition on the thermal stability and crystallization process of Fe_(42)Co_(42)Zr_(7)B_(9) and Fe_(39)Co_(39)Zr_(7)B_(15) amorphous alloys were investigated.The results show that the addition of Cu slightly improves the thermal stability of Fe_(42)Co_(42)Zr_(7)B_(9) amorphous alloy,and significantly improves the thermal stability of Fe_(39)Co_(39)Zr_(7)B_(15) amorphous alloy.For Fe_(42)Co_(42)Zr_(7)B_(9) and Fe_(39)Co_(39)Zr_(7)B_(15) amorphous alloys,there is obvious peak shift at the initial stage of crystallization.For Fe_(41.5)Co_(41.5)Zr_(7)B_(9)Cu_(1) and Fe_(38.5)Co_(38.5)Zr_(7)B_(15)Cu_(1) alloys,there is almost no peak shift during the crystallization process.TEM results show that the addition of Cu improves the distribution uniformity of nanocrystals and sl ightly increases the grain size.The effect of Cu addition on the thermal stability and crystallization process of Fe_(39)Co_(39)Zr_(7)B_(15) alloy with high B content is greater than that of Fe_(42)Co_(42)Zr_(7)B_(9) alloy with low B content.

关 键 词：非晶合金 Cu添加 热稳定性 晶面间距 晶粒尺寸 

分 类 号：TG139.8[一般工业技术—材料科学与工程]