Heavy duty seals are specifically
engineered for use in extreme conditions.
To reduce wear, different types of
cladding may be applied to the seal
Researchers from the Uppsala University in Sweden studied wear on
Stellite, a Cobalt-based family of materials that may be used for cladding.
Two Stellite surfaces were subjected to
constant sliding contact, then measured
using both a 3D optical profiler and a SEM (scanning electron microscope).
Results allowed imaging and
quantification of features on the surface (in particular a chunk of Stellite some 25µ thick transferred from one surface to the other as a result of contact).
Scan of surface topography (x,y,z)
2 SEM images obtained at different
MountainsMap® tools used
operator applied on 2 SEM images
Build series of surfaces operator
(allowing visual comparison +
creation of the animated view)
Step height study (for surface
Courtesy of J. Lind, Uppsala University