24CrNi合金钢力学性能重构磁滞参量定量评价  

Evaluation of Mechanical Property of 24CrNi Alloy Steel Using Reconstituted Hysteresis Loops Parameters Using Magnetic Barkhausen Noise

作　　者：吕瑞阳 宋凯 董世运[2] 门平 康学良 闫世兴 刘晓亭 LYU Ruiyang;SONG Kai;DONG Shiyun;MEN Ping;KANG Xueliang;YAN Shixing;LIU Xiaoting(Key Laboratory of Nondestructive Testing of Ministry of Education,Nanchang Hangkong University,Nanchang 330063,China;National Key Laboratory for Remanufacturing,Army Academy of Armored Force,Beijing 100072,China)

机构地区：[1]南昌航空大学,无损检测技术教育部重点实验室,南昌330063 [2]陆军装甲兵学院,装备再制造技术国防科技重点实验室,北京100072

出　　处：《材料导报》2020年第14期14168-14174,共7页Materials Reports

基　　金：国家重点研发计划(2016YFB1100205);国家自然科学基金(51865033)。

摘　　要：为了检验组织的均匀性并快速、定量、无损地评价合金钢的力学性能,提出利用基于磁巴克豪森噪声无损检测方法的重构磁滞特征参量进行综合评价。采用低频正弦波作为激励信号,分析磁巴克豪森噪声信号的重构磁滞参量与合金钢硬度、抗拉强度、微观结构之间的映射关系,建立重构磁滞参量定量评价合金钢强度的标定模型,并对标定模型进行验证。研究表明,重构磁滞参量中重构剩磁、重构磁滞损耗可以作为定量预测合金钢试件硬度、强度的评价参量,当重构磁滞参量超出特定区间时,预测误差逐渐增大。重构矫顽力、重构最大磁导率不能作为预测合金钢硬度、强度的评价参量,但可以作为材料组织均匀性评价的重要参考。To estimating the uniformity of microstructures and the mechanical properties of alloy steel quickly,quantitatively and non-destructively,a comprehensive evaluation of the reconstituted hysteresis characteristic parameters based on the magnetic Barkhausen noise non-destructive testing method was conducted.The low-frequency sine wave was used as the excitation signal to analyze the mapping relation between the reconstituted hysteresis parameters of the magnetic Barkhausen noise signal and the hardness,tensile strength-microstructure of the alloy steel.The calibration model for quantitative evaluation of the strength of alloy steel was carried out,and the calibration model was verified.The research shows that the reconstituted residual magnetism,reconstituted hysteresis loss can be used as quantitative parameters to predict the hardness as well as tensile strength of alloy steel specimens,the prediction error of calibrated model will increase while the constituted parameters exceed the specific interregion.The reconstituted coercivity and reconstituted maximum magnetic permeability cannot be used to predict the hardness and tensile strength of alloy steel but can be used as an important reference for material microstructure uniformity of alloy steel.

关 键 词：磁巴克豪森噪声 力学性能 重构磁滞 定量预测 组织均匀性 

分 类 号：TH878[机械工程—仪器科学与技术] TG115.28[机械工程—精密仪器及机械]