What is NDT?
Non-Destructive Testing, or NDT, refers to a range of inspection techniques used to evaluate the condition and properties of materials, components, or structures without causing any damage. The main objective is to identify flaws, defects, or irregularities in materials such as metals, composites, plastics and ceramics.
NDT methods rely on various physical principles, including electromagnetism, sound waves, radiation and thermal energy, to assess both surface and internal conditions. Common techniques include ultrasonic testing, or UT, radiographic testing, or RT, magnetic particle testing, or MT, liquid penetrant testing, or PT, eddy current testing, or ET and visual inspection, or VT.
These techniques are essential for ensuring the integrity, reliability and safety of structures and materials throughout manufacturing, construction, maintenance and operation. NDT plays a vital role in quality control, defect detection, risk assessment and asset management across industries like aerospace, automotive, oil and gas, power generation, infrastructure and advanced manufacturing.