热处理工艺对Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3)非晶合金磁性能及力学性能的影响  

Effects of Heat Treatment Process on Magnetic and Mechanical Properties of Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3) Amorphous Alloy

作　　者：程皓 李明瑞 李维火[1] CHENG Hao;LI Mingrui;LI Weihuo(School of Materials Science and Engineering,Anhui University of Technology,Ma'anshan 243000,China)

机构地区：[1]安徽工业大学材料科学与工程学院,安徽马鞍山243000

出　　处：《热加工工艺》2022年第6期137-141,共5页Hot Working Technology

基　　金：国家自然科学基金项目(51701003);安徽省大学生创新创业计划项目(201810360173)。

摘　　要：试验以目前应用广泛的Finemet合金(Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3))为研究对象,为了提高Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3)合金的软磁性能,将其在510~540℃温度下进行真空退火热处理试验。采用X射线衍射(XRD)、振动样品磁强计(VSM)以及纳米压痕法(Nanoindentation),研究了退火温度对合金条带显微组织、软磁性能及纳米压痕力学行为的影响。结果显示,经过真空退火热处理后的Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3)合金条带,其基体内产生了纳米晶,纳米晶的尺寸和晶化程度会随退火温度升高而增大,并且其磁滞回线变得平伏。随着退火温度的升高,合金条带的蠕变量逐渐减小而硬度值却在逐渐升高。The object of the experiment is the Finemet alloy(Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3)), which is widely used at present. In order to improve the soft magnetic properties of Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3)alloy, the vacuum annealing heat treatment test was carried out at 510-540 ℃. X-ray diffraction(XRD), vibrating sample magnetometer(VSM) and nanoindentation method were used to study the effects of annealing temperature on microstructure, soft magnetic properties and nanoindentation mechanical behavior of alloy strips. The results show that after vacuum annealing, the Fe_(73.5)Si_(13.5)B_(9)Cu_(1)Nb_(3)alloy strip produces nanocrystals in the substrate. The size and degree of nanocrystalline increase with the increase of annealing temperature, and its hysteretic loop becomes flat. With the increase of annealing temperature, the creep variable of alloy strip decreases gradually, but the hardness value increases gradually.

关 键 词：Finemet合金 真空退火 磁滞回线 纳米压痕 蠕变 

分 类 号：TG161[金属学及工艺—热处理] TG113.2[金属学及工艺—金属学]