文献类型：期刊文献

英文题名：Metal magnetic memory testing for the detection of disfigurement in the welding line

作者：Li, Guang-Ji; Sun, Guo-Hao; Pan, Jia-Zhen

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2006

卷号：32

期号：8

起止页码：1007

外文期刊名：Huadong Ligong Daxue Xuebao /Journal of East China University of Science and Technology

收录：EI(收录号：20064110166043)

语种：英文

摘要：The basic rule of metal magnetic memory (MMM) technique is that under the influence of stress, there will be magnetic leakage field on the surface of ferromagnetic materials in stress concentration (SC) and distortion zones. It is possible to determine SC zones according to measuring changes of normal component of magnetic leakage field. By applying MMM and ultrasonic to fourteen jointing armor plats, the validity of MMM technique is validated and a lot of availability experience is achieved.