利用近饱和磁化产生的巴克豪森效应测量铁磁件二轴应力

Measuring Biaxial Stress of Ferromagnetic Materials by Using Barkhausen Effect Based on the Law of Approach to Saturation Magnetization

讨论了一种检测铁磁材料内部应力的无损检测新技术。利用该技术，以近饱和磁化产生的巴克豪森效应与应力的关系，测量了铁磁构件的二轴应力和焊接构件的残余应力。检测结果与传统的Ｘ射线检测法的结果相一致。该检测技术在工程检测中有广泛的适用性。

A new developed technique in nondestructive testing for residual stress of the ferromagnetic materials is discussed. Biaxial stress of ferromagnetic materials and residual stress of welding components have been measured by using the relation between Barkhausen effeet based on the law of approach to saturation magnetization and internal stress. The testing result has a good consistance with that of the traditional X ray diffraction method. This testing technique has a widespread application in engineering testing field.