To improve the hardness and corrosion resistance of stainless steel its surface can be modified by developing nanocomposite coatings applied on its surface. The main objective of this thesis is to study effect of electroco-deposition method on microhardness and corrosion resistance of stainless steel. In this thesis employed Electroco-deposition process to develop a composite coating with (Ni) matrix and Ceramic oxide particles (Al2O3, ZrO2, and SiC) as reinforcements. The results showed the nanocomposites coating have a smooth and compact surface and have higher hardness than the uncoated...