磁粉检测通常被认为是目前表面裂纹检测最灵敏的方法之一。在 1 9世纪晚期 ,英国物理学家威廉·库克首次迈出了根本的一步 ,他发明了一种利用磁场来检测材料缺陷的专利技术 ,即磁粉探伤技术。1 92 2年 ,他指出把铁屑放在磁化钢件的表面 ,铁屑将形成与磁化钢件表面缺陷直接相关 Magnetic particle inspection is generally considered as one of the most sensitive methods for surface crack detection. For the first time in the late nineteenth century, British physicist William Cook made a fundamental step toward inventing a patented technology that uses magnetic fields to detect material defects, namely, magnetic particle inspection. In 1992, he pointed out that placing iron filings on the surface of magnetized steel will result in the formation of iron filings that are directly related to the surface defects of the magnetized steel