Dependence of Damage-induced Magnetization on the Plastic Deformation for X80 Steel
Metal magnetic memory (MMM) method is a novel,passive magnetic method for inspecting mechanical degradation of ferromagnetic components.In this paper,the correlation between plastic deformation and the deformation-induced magnetic field was experimentally investigated for the X80 steel.Various tensile plastic deformations are introduced into test pieces with different initial discontinuities.The surface strain distributions and normal natural magnetic fields component are measured after the tensile testings.The results show that the normal natural magnetic fields component are effective in capturing different deformation stages under tensions,the relationship between the intensity of damage-induced magnetization and the maximum plastic strain follows a simple formula proposed in this paper.
Metal magnetic memory (MMM) plastic deformation natural magnetic fields simple formul
Qiang Wan Liming Wei Zhenkai Zhou Yunfei Li
Institute of Structural Mechanics,China Academy of Engineering Physics, Mianyang,Sichuan, 621900,China
国际会议
济南
英文
106-111
2013-05-18（万方平台首次上网日期，不代表论文的发表时间）