Non-Destructive Testing
Hopedwell > Engineering > Non-Destructive Testing
Non-Destructive Testing (NDT) is a
testing and analysis technique used
by industry to evaluate the
properties of material, components,
structure, or system for
characteristics differences or
welding defects and discontinuities
without causing damage to the
original part. Also known as non-destructive examination (NDE), non-destructive inspection (NDI) and
non-destructive evaluation (NDE).
Dye Penetrant Testing
Dye Penetrant Inspection (DPI) is widely used to detect surface
breaking flaws. This non-destructive
testing technique, also known as
liquid penetrant inspection (LPI), is
a cost-effective method used to
locate surface breaking flaws such
as cracks, porosity, laps, seams and
other surface discontinuities
Magnetic Particle Inspection (MPI)
This method is very popular,
low-cost and used for the
detection of surface and near surface flaws in ferromagnetic
materials and is primarily used
for crack detection.
Ultrasonic Testing (UT)
Ultrasonic nondestructive
testing, also known as ultrasonic
NDT or simply UT, is a method of
characterizing the thickness or
internal structure of a test piece
through the use of high
frequency sound waves.
Hardness Testing
Hardness is the mechanical
resistance of a material (specimen)
to mechanical indentation by
another harder body (indenter).
The hardest natural material is the
diamond, which is used for the
indenter (industrial diamond).
The definition of hardness differs
from the definition of strength,
which is the resistance of a material
to deformation and separation.
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