1 results listed
Nano composite coatings are a new forms of materials
containing hard phase particles to enhance the hardness and wear
resistance, among which diamond in terms of feasibility and cost,
is the best combination for chromium. In this study, electrolytic
coating of pure chromium and Cr-ND (nano diamond) composite
coatings were applied on pre-alloy metal powder metallurgy
specimens. The effects of the ND particles on tribological behavior
of the chromium coatings were investigated. Characterization
tests were carried out using an optical microscope, SEM, EDS,
XRD and AFM. The dry sliding wear behavior of the specimens
was carried out using pin on plate configuration. The hardness
and wear resistance of the Cr-ND coated samples were compared
with pure chromium coated and non-coated specimens. The
results demonstrated that the embedding of the ND particles in the
chromium matrix led to a significant improvement on the
hardness and wear behavior of the Cr-ND coatings than pure
chromium coatings and non-coated specimens.
International Iron & Steel Symposium
UDCS
N. Zoghipour
E. Salamci
Rahmi Ünal
N. Gidikova*
R. Valov
V. Petkov