3.3 Advantages of Magnetic Particle Crack Detection
• Simplicity of operation and application.
• Quantitative.
• Can be automated, apart from viewing. (Though modern developments in
automatic defect recognition can be used in parts of simple geometry e.g.
billets and bars. In this case a special camera captures the defect indication
image and processes it for further display and action)
3.4 Disadvantages of Magnetic Particle Crack Detection
• Restricted to ferromagnetic materials.
• Restricted to surface or near surface flaws.
• Not fail safe in that lack of indication could mean no defects or process not
carried out properly.