激励参数对Q235钢增量磁导率蝶形图的影响研究  

Research on the Influence of Excitation Parameters on Butterfly Diagram of Q235 Steel’s Incremental Permeability

作　　者：涂洪铭 伍剑波[1] 柯瑞 夏慧 陈笑天 MACIEJ Roskosz TU Hongming;WU Jianbo;KE Rui;XIA Hui;CHEN Xiaotian;MACIEJ Roskosz(School of Mechanical Engineering,Sichuan University,Chengdu 610065;Faculty of Mechanical Engineering and Robotics,AGH University of Science and Technology,Kraków 30-059,Poland)

机构地区：[1]四川大学机械工程学院,成都610065 [2]AGH科技大学机械工程与机器人学院,波兰克拉科夫30-059

出　　处：《机械工程学报》2024年第2期27-35,共9页Journal of Mechanical Engineering

基　　金：国家自然科学基金(62373265);四川省科技计划(2022YFG0044,2023YFQ0060)资助项目。

摘　　要：增量磁导率检测法是一种新型电磁无损检测方法,能够实现对铁磁性材料多种特性的定量或定性检测与评估。由于增量磁导率信号特征值容易受电磁影响,不同的激励条件会影响其最终评价的结果,且尚未有研究分析激励参数对增量磁导率蝶形图的影响。通过多种激励参数变化下的增量磁导率检测方法试验,分析高频/低频磁化的频率、强度、叠加方向以及提离效应带来的影响,探究不同激励参数下增量磁导率的变化规律,结果表明高频/低频磁场强度、频率、方向以及提离对增量磁导率信号及其蝶形图的特征值影响程度各不相同,为增量磁导率检测法的信号分析和工业应用奠定理论基础。Incremental permeability detection is a new electromagnetic non-destructive testing method,which can realize the quantitative or qualitative detection and evaluation of many properties of ferromagnetic materials.Since the characteristic value of the incremental permeability signal is easily affected by electromagnetic,different excitation conditions will affect the final evaluation result,and there are no studies to analyze the influence of excitation parameters on the butterfly chart of the incremental permeability.By conducting incremental permeability experiments with changes in various excitation parameters,the frequency,intensity,superposition direction of high-frequency/low-frequency magnetization and the influence of the lift-off effect were analyzed,and the change law of the incremental permeability under different excitation parameters was explored.The results showed that the intensity,frequency,direction and lift-off effect of the high-frequency/low-frequency magnetic field had different effects on the incremental permeability signal and the characteristic value of the butterfly diagram.It lays a theoretical foundation for signal analysis and industrial application of incremental permeability detection method.

关 键 词：无损检测 增量磁导率 激励参数 矫顽力 

分 类 号：TG115[金属学及工艺—物理冶金]