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StressX-3000
is the latest portable X-ray diffraction system designed
for the analysis of residual stress and the calculation
of the percentage of retained austenite
Residual
stress is due to thermal treatments, mechanical
processes, welding and surface treatments that the
pieces undergo during the manufacturing processes. This
type of stress permanently influences the piece's
resistance, especially under strain, and often it is the
cause of breaks that have no metallurgical
justification.
The
importance of residual stress analysis is growing.
Welded structures, gears, shot-or sandblasted parts,
thermal and many other treatments can be controlled and
monitored with the help of X-Ray diffractometer.
Reducing the data collection time is the next step,
which this instrument is capable to offer.
Measurements
of stresses in metals are made by using the distance
between the atoms plans, as a stress gauge. The distance
is measured with the help of the diffraction of an X-ray
beam on the analysed part.
Even
a small percentage of residual austenite (5%) can cause
deformations that make the piece unusable. An example
can be given with ball bearing tracks and injector pins
for diesel motors. Detection of their presence can
optimise thermal treatment |
