Measurement of Self-emitting Magnetic Signals from a Precut Notch of Q235 Steel during Tensile Test
In order to investigate the approach to characterize the damage be-havior of ferromagnetic material components with flaw by metal magnetic memory testing, a sheet specimen with a precut notch of Q235 steel was chosen to measure the self-emitting magnetic signals on its surface during tensile test. The results showed that an abnormal magnetic signal appeared at the position of the precut notch after early loading and then transformed gradually to a clear magnetic abnormal peak with the tensile load increasing, which implied that the variations of self-emitting signals can reflect the influence of applied load on the specimen dynamically. The abovementioned phenomenon was discussed from the point of view of magnetomechanical effect.
self-emitting signals applied load damage magnetic abnormal peak effective magnetic field.
Lihong Dong Binshi Xu Shiyun Dong
National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering,Beijing, 100072, P.R. China
国际会议
南昌
英文
231-236
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）