2.6. Wear tests
Wear tests were carried out under a dry sliding condition using
plate-on-flat configuration on a reciprocating wear testing machine
(Biceri). Boronized steel with a hardness of 2000 HV was used as
the counterface material (sliding plate). Wear tests were also carried
out under unlubricated condition at room temperature for 5 min
(300 s). The drive speed was set to 280 rpm and the sliding distance
was 90 m for an applied load of 50 N. In order to quantify the weight
loss during experiments, each specimen was weighed before and
after the tests using an electronic balance having a sensitivity of
0.1 mg. The wear rate of each specimen was calculated from the
worn surface. Following the wear tests, the wear groove and worn
rolling of the specimens were characterized using FE-SEM and the
roughness of the wear groove was measured by Taylor Habson
Roughness Measurement.