What is the primary purpose of magnetic particle inspection?

The primary purpose of magnetic particle inspection is to detect discontinuities in materials. This non-destructive testing (NDT) method is specifically designed to find surface and near-surface defects in ferromagnetic materials. When a magnetic field is applied to the material, any discontinuities such as cracks, seams, or inclusions will disrupt the magnetic field and cause magnetic particles applied to the surface to gather at these flaws, making them visible for examination.

By focusing on identifying defects, magnetic particle inspection helps ensure the integrity and safety of critical components used in various industries, ranging from aerospace to manufacturing. This method is invaluable in preventing failures that could occur due to undetected flaws, emphasizing its significance in maintaining quality standards and operational safety.