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学者姓名：刘秀成
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Abstract ：
The combination of multifunctional micromagnetic testing and neural network-based prediction models is a promising way of nondestructive and quantitative measurement of steel surface hardness. Current studies mainly focused on improving the prediction accuracy of intelligent models, but the unavoidable and random uncertainties related to instruments were seldom explored. The robustness of the prediction model considering the repeatability of instruments was seldom discussed. In this work, a self-developed multifunctional micromagnetic instrument was employed to perform the repeatability test with Cr12MoV steel. The repeatability of the instrument in measuring multiple magnetic features under both static and dynamic conditions was evaluated. The magnetic features for establishing the prediction model were selected based on the consideration of both the repeatability of the instrument and the ability of magnetic features in surface hardness evaluation. To improve the robustness of the model in surface hardness prediction, a modelling strategy considering the repeatability of the instrument was proposed. Through removing partial magnetic features with higher mean impact values from input nodes, robust evaluation of surface hardness in Cr12MoV steel was realized with the multifunctional micromagnetic instrument.
Keyword ：
quantitative prediction quantitative prediction repeatability repeatability robustness robustness micromagnetic testing micromagnetic testing surface harness surface harness
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| GB/T 7714 | Xing, Zhixiang , Wang, Xianxian , Ning, Mengshuai et al. Micromagnetic and Robust Evaluation of Surface Hardness in Cr12MoV Steel Considering Repeatability of the Instrument [J]. | SENSORS , 2023 , 23 (3) . |
| MLA | Xing, Zhixiang et al. "Micromagnetic and Robust Evaluation of Surface Hardness in Cr12MoV Steel Considering Repeatability of the Instrument" . | SENSORS 23 . 3 (2023) . |
| APA | Xing, Zhixiang , Wang, Xianxian , Ning, Mengshuai , He, Cunfu , Liu, Xiucheng . Micromagnetic and Robust Evaluation of Surface Hardness in Cr12MoV Steel Considering Repeatability of the Instrument . | SENSORS , 2023 , 23 (3) . |
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Abstract ：
Magnetic Barkhausen noise (MBN), sensitive to the microstructure of materials, can be applied in the surface decarburization depth detection of ferromagnetic specimens. However, the effects of core microstructures on the determination results of decarburization depth have not been explored. In this study, MBN was employed to evaluate the magnetic properties of the decarburized 60Si2Mn spring steels with martensitic and pearlitic core microstructures. Spring steel samples were austenitized at different times to generate different decarburization depths. Seven magnetic features were extracted from the MBN butterfly profiles. We used the variation coefficient, linear correlation coefficient, and normalized sensitivity to discuss the influence of the core microstructures on these seven features. The different core microstructures led to a large difference in the ability of MBN features to characterize the decarburization layer depth. However, three features of MBN butterfly profiles demonstrated an approximately linear dependency (linear correlation coefficient > 94%) on surface decarburization depth and monotonically increased with the increase in depth in both core microstructures of spring steels.
Keyword ：
magnetic Barkhausen noise magnetic Barkhausen noise surface decarburization depth surface decarburization depth spring steel spring steel core microstructure core microstructure
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| GB/T 7714 | Li, Peng , Wang, Xianxian , Ding, Dongdong et al. Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique [J]. | SENSORS , 2023 , 23 (1) . |
| MLA | Li, Peng et al. "Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique" . | SENSORS 23 . 1 (2023) . |
| APA | Li, Peng , Wang, Xianxian , Ding, Dongdong , Gao, Zhaoxiang , Fang, Wen , Zhang, Chaolei et al. Surface Decarburization Depth Detection in Rods of 60Si2Mn Steel with Magnetic Barkhausen Noise Technique . | SENSORS , 2023 , 23 (1) . |
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Abstract ：
A switch rail is an important part of the high-speed railway system, but it is highly susceptible to defects during service, which threat traffic safety. A switch rail has an asymmetric variable cross-section structure, which makes it challenging to detect its defects with ultrasonic testing. In this study, the finite element model of switch rails and the ultrasonic SH guided wave detection of groove defects were explored. The three-dimensional finite element model of switch rails with the same sizes used under working conditions was established. Furthermore, the influences of grid division method, switch mechanism setting method, and root end variable cross-section grid type on guided wave propagation in the model were analyzed in detail. The switch rail model was exper-imentally validated. The ultrasonic SH guided wave detection of the defects at the rail head and rail bottom was successfully realized and the echo signals from other special structures of switch rail were also obtained. The finite element model calibrated with experimental results could be used to simulate guided wave detection at any location with any defect. The calibrated model could optimize the switch rail guided wave detection scheme and guide signal identification. The study provides an important basis for the inspection and monitoring of switch rails.
Keyword ：
Ultrasonic SH guided wave Ultrasonic SH guided wave 3D finite element method 3D finite element method Defect detection Defect detection Grid Grid Switch rail Switch rail
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| GB/T 7714 | Li, Xiafei , Wu, Bin , Gao, Xiang et al. Ultrasonic SH guided wave detection of the defects of switch rails with 3D finite element method [J]. | MEASUREMENT , 2023 , 220 . |
| MLA | Li, Xiafei et al. "Ultrasonic SH guided wave detection of the defects of switch rails with 3D finite element method" . | MEASUREMENT 220 (2023) . |
| APA | Li, Xiafei , Wu, Bin , Gao, Xiang , Liu, Yao , Wang, Huan , Liu, Xiucheng . Ultrasonic SH guided wave detection of the defects of switch rails with 3D finite element method . | MEASUREMENT , 2023 , 220 . |
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Abstract ：
硬斑测试是高端钢板产品质量评价的关键内容。本文基于增量涡流检测原理，研制了国产化的钢板硬斑磁检测仪器，并对仪器功能和性能进行了实验测试。首先，研制了增量涡流检测传感器，开发了基于交流电桥测试和相位旋转解调方法的增量涡流检测电路，集成了专用仪器；其次，利用仪器在Cr12MoV钢板和X70管线钢中开展了多组检测试验，结果表明：传感器的横向分辨率可达10 mm,增量涡流信号解调波形峰峰值U_p随表面硬度增加近似线性下降。在高出基准34.8%的硬斑区域内，U_p值下降约75%。利用U_p这一敏感参数对X70管线钢进行扫查成像，可准确识别出宽约10 mm的硬斑。上述研究结果为高端钢板硬斑的在线无损检测提供了方法和仪器支撑。
Keyword ：
扫查仪器 扫查仪器 钢板硬斑 钢板硬斑 无损检测 无损检测 增量涡流 增量涡流
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| GB/T 7714 | 邢智翔 , 何存富 , 刘秀成 et al. 钢板硬斑的增量涡流扫查成像方法与仪器 [J]. | 仪器仪表学报 , 2023 , 44 (02) : 184-191 . |
| MLA | 邢智翔 et al. "钢板硬斑的增量涡流扫查成像方法与仪器" . | 仪器仪表学报 44 . 02 (2023) : 184-191 . |
| APA | 邢智翔 , 何存富 , 刘秀成 , 张建卫 . 钢板硬斑的增量涡流扫查成像方法与仪器 . | 仪器仪表学报 , 2023 , 44 (02) , 184-191 . |
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Abstract ：
汽车B柱加强板软硬部过渡特性评价的常规方法是通过破坏性取样对局部硬度进行检测，无法直接面向零部件进行便捷、快速的无损测试，且耗时、耗费成本。为克服传统方法的不足，研究利用磁巴克豪森噪声检测方法实现过渡特性的无损评价。利用自主研发的多功能微磁检测仪器开展标定试验，提出过渡区域起止位置及长度范围的估算方法，并建立过渡区域的表面硬度定量预测模型。研究结果表明，磁巴克豪森噪声、切向磁场强度信号的大部分特征参量可以有效评估软、硬部过渡范围，参量x_1、x_5和x_(17)对起始点的估计误差范围处于±14 mm，长度估算的相对误差小于10%。利用单一参量x_(17)建立的线性表征模型对硬度的预测RMSE值为12.38 HV10，融合多项磁参量建立的BP神经网络模型的预测精度更高，RMSE值小于6 HV10。提出一种汽车关键部件软硬部过渡特性的微磁评估方法，研究磁巴克豪森噪声特征参量与硬度的关系，实现汽车B柱软硬区表面硬度和软硬部过渡范围的定量表征，具有重要的工程应用前景。
Keyword ：
BP神经网络 BP神经网络 B柱加强板 B柱加强板 磁巴克豪森噪声 磁巴克豪森噪声 表面硬度 表面硬度 过渡特性 过渡特性
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| GB/T 7714 | 董海江 , 郑婷婷 , 于进涛 et al. 汽车B柱加强板软硬部过渡特性的磁巴克豪森噪声检测方法 [J]. | 机械工程学报 , 2023 , 59 (04) : 10-17 . |
| MLA | 董海江 et al. "汽车B柱加强板软硬部过渡特性的磁巴克豪森噪声检测方法" . | 机械工程学报 59 . 04 (2023) : 10-17 . |
| APA | 董海江 , 郑婷婷 , 于进涛 , 付正家 , 刘秀成 , 邢智翔 et al. 汽车B柱加强板软硬部过渡特性的磁巴克豪森噪声检测方法 . | 机械工程学报 , 2023 , 59 (04) , 10-17 . |
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Abstract ：
探讨了紫铜基板表面电镀镍膜拉应变的磁巴克豪森噪声测试和表征方法。首先，构建了能够同步测量电镀镍膜拉伸过程中应变和磁巴克豪森噪声信号的试验装置，获得了不同厚度镍膜中表面切向磁场强度信号，以及不同应变条件下的磁巴克豪森噪声，并从两种信号中筛选出对镍膜厚度、应变敏感的特征磁参量；最后，通过方程拟合分析了特征磁参量对镍膜厚度、拉应变的定量表征能力。结果表明，随着镍膜厚度增加，切向磁场强度的基波幅值(A_1)呈现良好线性下降趋势；磁巴克豪森噪声特征参量(M_(max)或M_(mean))和拉应变的依赖关系服从指数型衰减函数关系。通过组合两种信号的特征参量，可以实现镍膜厚度和拉应变的定量检测。
Keyword ：
定量表征 定量表征 电镀镍膜 电镀镍膜 厚度 厚度 磁巴克豪森噪声 磁巴克豪森噪声 拉应变 拉应变
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| GB/T 7714 | 韩新阳 , 康静伟 , 王楠 et al. 电镀镍膜应变的磁巴克豪森噪声试验表征 [J]. | 无损检测 , 2023 , 45 (07) : 1-6,84 . |
| MLA | 韩新阳 et al. "电镀镍膜应变的磁巴克豪森噪声试验表征" . | 无损检测 45 . 07 (2023) : 1-6,84 . |
| APA | 韩新阳 , 康静伟 , 王楠 , 刘秀成 , 何存富 . 电镀镍膜应变的磁巴克豪森噪声试验表征 . | 无损检测 , 2023 , 45 (07) , 1-6,84 . |
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Abstract ：
The elasto-magnetic method is a promising pathway for cable force monitoring in cable-stayed bridges. Under the action of an externally applied pulsed magnetic field, both the variation in the main flux recorded by the induction coil and the localized surface magnetic field measured by the packaged magnetic sensor are typical signals for observing the elasto-magnetic effect in tensioned cables. However, the performances of the parameters extracted from the two types of elasto-magnetic signals are never strictly compared in the experiment. Meanwhile, comprehensive indicators for evaluating the ability of elasto-magnetic parameters on cable force characterization are seldom discussed. As a result, it is difficult to compare the performances of elasto-magnetic devices developed by different teams, and the pathway of seeking new parameters for cable force monitoring is obstructed. In this study, elasto-magnetic calibration experiments were performed on a cable of seven-wire steel strands to simultaneously measure the variation in the main flux and the localized surface magnetic field. Comprehensive indicators considering sensitivity, hysteresis error, and cable force resolution are proposed to examine the performances of classic elasto-magnetic parameters and new candidate ones. Through comparative study, two new parameters demonstrated outstanding ability for cable force measurement, and they are the minimum amplitude of the induced voltage and the area under the curve between two points of 3 dB height of the voltage measured by a Hall sensor. The latter is recommended for high-performance cable force monitoring from the perspective of simplicity in sensor configuration.
Keyword ：
performance evaluation performance evaluation cable force measurement cable force measurement comprehensive indicators comprehensive indicators elasto-magnetic effect elasto-magnetic effect
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| GB/T 7714 | Yan, Shuangsheng , Wang, Yujue , Li, Peng et al. Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring [J]. | SENSORS , 2022 , 22 (20) . |
| MLA | Yan, Shuangsheng et al. "Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring" . | SENSORS 22 . 20 (2022) . |
| APA | Yan, Shuangsheng , Wang, Yujue , Li, Peng , Gao, Zhichao , Wu, Bin , Liu, Xiucheng . Comprehensive Indicators for Evaluating and Seeking Elasto-Magnetic Parameters for High-Performance Cable Force Monitoring . | SENSORS , 2022 , 22 (20) . |
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Abstract ：
In the study, the three-dimensional (3D) morphology of defects in thin steel strips with a thickness of 0.8 mm was determined with the imaging method of magnetic field distortion (MFD). First, MFD imaging of through-wall defects and wall-thinning defects in the samples collected from inline products was performed in our laboratory. The actual profiles of the defects were measured with a digital microscope. Second, MFD imaging results were compared with the actual shapes of the defects in order to develop a proper 3D reconstruction method of complex defects. Finally, the analysis results demonstrated that the high reconstruction accuracy of opening contours of complex defects could be realized with the carefully selected threshold value of MFD-induced voltage amplitude. The good linear dependency of MFD-induced voltage amplitude on the depth of complex wall-thinning defects was confirmed. Therefore, MFD imaging method is a promising method for accurately reconstructing 3D shape of complex wall-thinning defects in thin steel strips.
Keyword ：
magnetic field distortion magnetic field distortion 3D reconstruction 3D reconstruction complex defect complex defect thin steel strip thin steel strip
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| GB/T 7714 | Li, Hengtao , Liu, Xiucheng , Zhang, Jiaying et al. Three-Dimensional Reconstruction of Complex Defects in Thin Steel Strips with the Imaging Method of Magnetic Field Distortion [J]. | RESEARCH IN NONDESTRUCTIVE EVALUATION , 2022 , 32 (6) : 310-322 . |
| MLA | Li, Hengtao et al. "Three-Dimensional Reconstruction of Complex Defects in Thin Steel Strips with the Imaging Method of Magnetic Field Distortion" . | RESEARCH IN NONDESTRUCTIVE EVALUATION 32 . 6 (2022) : 310-322 . |
| APA | Li, Hengtao , Liu, Xiucheng , Zhang, Jiaying , Wang, Chang , Wu, Bin , He, Cunfu . Three-Dimensional Reconstruction of Complex Defects in Thin Steel Strips with the Imaging Method of Magnetic Field Distortion . | RESEARCH IN NONDESTRUCTIVE EVALUATION , 2022 , 32 (6) , 310-322 . |
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Abstract ：
The ability of magnetic field distortion (MFD) and magnetic attractive force (MAF) sensors to detect both the inner and outer carburized layers of the furnace tube was investigated in the study. They were employed for quantitative nondestructive evaluation of carburized layer depth in furnace tubes of Cr35Ni45NbMA. It was found that the carburized layer on the outer surface had the dominant effect on the responses of MFD and MAF sensors compared to the carburized layer on the inner surface. Parabolic dependency of the responses of MFD and MAF sensors on the carburized layer at the outer surface was concluded. The accuracy of the proposed sensors was verified by experiments. It was found that MFD sensor was more suitable for the detection of the outer carburized layer of furnace tube than MAF sensor, while PSD obtained by MAF could be used for qualitative evaluation of the depth of inner carburized layer.
Keyword ：
Furnace tube Furnace tube Carburized layer depth Carburized layer depth MFD MFD MAF MAF
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| GB/T 7714 | Li, Hengtao , Wu, Bin , Tang, Ruiqi et al. Nondestructive evaluation of carburized layer depth in furnace tubes of Cr35Ni45NbMA using magnetic field distortion and magnetic attraction force measurement methods [J]. | MEASUREMENT , 2022 , 191 . |
| MLA | Li, Hengtao et al. "Nondestructive evaluation of carburized layer depth in furnace tubes of Cr35Ni45NbMA using magnetic field distortion and magnetic attraction force measurement methods" . | MEASUREMENT 191 (2022) . |
| APA | Li, Hengtao , Wu, Bin , Tang, Ruiqi , Wang, Yujue , Liu, Xiucheng , He, Cunfu . Nondestructive evaluation of carburized layer depth in furnace tubes of Cr35Ni45NbMA using magnetic field distortion and magnetic attraction force measurement methods . | MEASUREMENT , 2022 , 191 . |
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Abstract ：
平行钢丝束作为缆索桥梁的关键受力构件，直接影响桥梁结构的安全。基于漏磁检测原理，利用柔性桥索检测传感器对平行钢丝束典型缺陷进行检测。采用点检测和线扫查两种检测方式，研究了圆形和扇形两种排布方式下不同平行钢丝束的填充状态对表层缺陷漏磁场的影响。针对观察到的平行钢丝束填充会减小表层缺陷漏磁场强度的现象，提出了一种用于预测该弱化规律的模型，在缺陷钢丝周围有、无平行钢丝束填充的两种状态下研究了不同位置表层缺陷的漏磁场分布，得出了两种填充状态下缺陷漏磁场与缺陷位置的关系。
Keyword ：
漏磁场分析 漏磁场分析 平行钢丝束 平行钢丝束 漏磁法 漏磁法 缺陷检测 缺陷检测
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| GB/T 7714 | 郭建美 , 王钰珏 , 丁俊才 et al. 平行钢丝束填充状态对表层缺陷漏磁场的弱化规律分析 [J]. | 无损检测 , 2022 , 44 (07) : 60-64 . |
| MLA | 郭建美 et al. "平行钢丝束填充状态对表层缺陷漏磁场的弱化规律分析" . | 无损检测 44 . 07 (2022) : 60-64 . |
| APA | 郭建美 , 王钰珏 , 丁俊才 , 吴斌 , 刘秀成 , 何存富 . 平行钢丝束填充状态对表层缺陷漏磁场的弱化规律分析 . | 无损检测 , 2022 , 44 (07) , 60-64 . |
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