Multiparameter magnetomechanical NDE
Multiparameter magnetomechanical NDE
复制标题
多参数磁力无损检测
DOI：
10.1109/20.908921
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
M. Sablik
中科院分区：
文献类型：
--
作者：
B. Augustyniak;M. Chmielewski;M. Sablik
提出了一种基于多参数磁力学性能测量的微结构磁无损评价新方法。使用频率为1 Hz的三角波，用C芯磁化钢试样。磁滞回线得到了五个数量：磁声发射（MAE）和巴克豪森效应（BE）的强度，磁通量导数，外部磁场强度，和磁致伸缩。提取磁通量二阶导数和磁致伸缩导数的能力允许研究MAE和其他磁性之间的几个新的相互关系。磁致伸缩峰位置与磁通量二阶导数和磁致伸缩导数的峰值近似一致。这些影响进行了讨论和再现使用现有的磁模型MAE和相应的磁通密度和磁致伸缩模型。
We present a new approach to microstructural magnetic nondestructive evaluation (NDE) based on multiparameter measurements of magnetomechanical properties. A steel specimen was magnetized with a C-core using a triangular waveform of order 1 Hz in frequency. Hysteresis loops were obtained for five quantities: magnetoacoustic emission (MAE) and Barkhausen effect (BE) intensities, magnetic flux derivative, external magnetic field strength, and magnetostriction. The ability to extract the magnetic flux second derivative and the derivative of the magnetostriction permitted the investigation of several new interrelationships between MAE and other magnetic properties. Approximate coincidences were observed between MAE peak field position and peaks in magnetic flux second derivative and derivative of the magnetostriction. These effects are discussed and reproduced using existing magnetic modeling of MAE and corresponding modeling of flux density and magnetostriction.