Experimental study on the stress and magnetic behavior of non-ferromagnetic materials in weak magnetic field

Magnetic testing technology is one of the effective methods in the ferromagnetic materials detecting field. In order to perform the stress damage study on non-ferromagnetic materials, this paper adopts the weak magnetic detection technology which can be applied to the defect detection of ferromagnetic and non-ferromagnetic. Taking the non-ferromagnetic material, T2 copper as an example, the general process of studying nonferromagnetic materials stress and magnetic behavior by using weak magnetic detection technology has been investigated. The experimental results show that the variation laws of the surface magnetic induction intensity on the surface of non-ferromagnetic materials are consistent with the variation laws of stress, which provided the experimental basis for the application of weak magnetic monitoring technology in monitoring stress damage of non- ferromagnetic materials.