The field of Nondestructive Testing (NDT) is a very broad, that plays a critical role in
assuring that structural components and systems perform their function in a reliable and
cost effective fashion. NDT technicians and engineers define and implement tests that
locate and characterize material conditions and flaws that might otherwise cause
serious accidents such as, planes to crash, reactors to fail, trains to derail, pipelines to
burst, and a variety of troubling events.
These tests are performed in a manner that does not affect the future usefulness of the
object or material. In other words, NDT allows parts and materials to be inspected and
evaluated without damaging them. Because it allows inspection without interfering with
a product's final use, NDT provides an excellent balance between quality control and
Nondestructive Evaluation (NDE) is a term that is often used interchangeably with NDT.
However, technically, NDE is used to describe measurements that are more quantitative
in nature. For example, a NDE method would not only locate a defect, but it would also
be used to measure something about that defect such as its size, shape, and
orientation. NDE may be used to determine material properties such as fracture
toughness, ductility, conductivity and other physical characteristics.
Uses of NDE
Flaw Detection and Evaluation
Leak Detection, Location Determination
Structure and Microstructure Characterization
Estimation of Mechanical and Physical Properties
Stress (Strain) and Dynamic Response Measurements
Material Sorting and Chemical Composition Determination