Crack Detection of Ferromagnetic Materials through Non Destructive Testing Methodology

The real components have so many defects in the material, which acts as a crack. In fact, manufacturing of a component is not ideal. In manufacturing several kinds of defects are generated like voids and inclusions. Thus, it must be check all the critical components through non-destructive techniques (NDT) to detect the potential dangerous cracks. In Certain crucial components such as Airplanes, Space Vehicles, Nuclear Plants, Heavy Machinery, Dams, Concrete etc., online monitoring of defects is necessary. Concrete is different from other construction materials. Concrete can be made from combination of different materials. Its final properties depend on its treatment at construction site. To achieve this, sophisticated technologies are used. Ferromagnetic Composite Iron (FCI) is used in power generating devices and DC brushless Motors. Laminations can be substituted by Ferromagnetic Composite Iron (FCI) materials which offer a great manufacturing advantage. Non Destructive testing (NDT) is a major part of quality control. In Non-Destructive testing (NDT) different materials are tested for surface, volumetric and internal defects present in it. Non Destructive testing (NDT) is also an assurance that the proposed product is good and reliable. To apply these techniques, a certain level of skills is very necessary so that maximum amount of information is fetched related to the proposed product during testing. This paper deals with the Non Destructive Testing Methodology Used for crack detection in ferromagnetic materials.