Modification of Nickel-phosphor Electroless Coatings by adding particles of Zirconia

Abstract

Researchers have devoted much time to metal deposition processes via the deposition of electroless
nickel, alloy & composite coatings on different surfaces; most recent applications have been made possible
due to different excellent characteristics of these coatings. These coatings have recently shown exciting
properties in terms of wear & corrosion resistance, leading to several novel innovations for macro-level
applications. In this work, the concept of composite coating via co-deposition coating was introduced. The
improvement in the properties of the Ni-P alloy coatings was evaluated by introducing Zr particles into the
electroless deposited solution. The stainless steel (SS) samples were first coated using electroless with Ni-P
and Zr microparticles (size = 30- 70 µm) at different concentrations of 0, 10, & 20 g/L. The samples were
subjected to SEM and AFM analysis after being impeded in NaCl solution (3.5%) for corrosion behaviour
study before the wear resistance and microhardness tests.