Introduction to NDT

This module provides a foundational overview of Non-Destructive Testing, exploring its history from the early "Oil and Whiting" method to modern aerospace standards. It defines the critical differences between discontinuities and defects, introduces the three levels of personnel certification under EN 4179, and explains how NDT prevents catastrophic fatigue failure without damaging the components being tested.

Liquid Penetrant Inspection is a simple and effective method used to detect surface defects in non-porous materials. It is widely used due to its low cost, ease of application, and ability to reveal very fine discontinuities.

Designed for detecting surface and near-surface flaws in ferromagnetic materials. It teaches how to use magnetic fields to create "flux leakage" that attracts magnetic particles, making defects visible.

An electromagnetic method used for conductive materials to detect cracks, measure coating thickness, or identify material variations. It relies on measuring changes in impedance caused by induced circular currents.

Uses high-frequency sound waves to identify internal flaws and measure material thickness. The module focuses on interpreting reflected echoes and understanding sound velocity across different wave types.

Utilizes X-rays or gamma rays to visualize the internal structure of a component. It highlights the interpretation of density differences on a radiograph while strictly following ALARA radiation safety principles.