Investigation of electrochemical coating of different ceramic particles on AISI 304 austenitic stainless steel

Electrochemical coating often mentions its name because of its ease of operation, simplicity, cheapness, it is applicable to every part and it is an effective method. Composite coatings made using electrochemistry are widely used today. In particular, it is known that carbide powders increase the hardness of materials and improve the surface properties of materials. In this study, solutions of B4C, SiC and ZrC powders prepared from carbide powders prepared in different ratios were used together with pure nickel. B4C is a material that draws attention with its high hardness, mechanical, tribological, electronic and optical properties as well as its high neutron absorption feature. It has low density, high Young's modulus, very high thermal and chemical stability, etc. It is the hardest material known after B4C, diamond and c-BN. With these properties, B4C thin films are used in mechanical and tribological applications such as coating of cutting tools, brake pads, hard disks and various machine parts. SiC is a ceramic material with exceptional hardness surpassed only by diamond, cubic boron nitride and boron carbide. The material is abrasion resistant and chemically inert to all alkalis and acids as well as high temperature resistant. These properties make SiC powder a superior abrasive and ceramic material for use in extreme operating conditions. ZrC, on the other hand, has high hardness, high thermal conductivity, good oxidation resistance and toughness. Nylon in the textile industry, fiber and hard alloy thermostat is used in textile making. It is also used in composite materials such as polymer nanocomposites, ceramics and metal matrix. In this study, these three different ceramic powders with the best hardness among ceramic powders were coated on AISI 304 stainless steel. In the light of the data obtained and considering the frequency of use of the materials in the chemical industry, nickel plated mechanical, tribological and corrosion properties of these materials with improved electrochemical plating method for the improvement of different composite coatings on steel Aisi 304 Des compositions have been developed. In fact, AISI 304 has superior corrosion resistance properties on its own, but its electrochemical coating can usually be performed on acidic solutions and requires different composite coatings to increase the hardness according to the application areas. Given the difficulty of electrochemical coating of AISI 304 steel, the coatings that can be obtained on this surface can be applied to many different surfaces, such as mild steel. As a general aim, it is aimed to perform composite nickel coatings in green solutions by electrochemical coating method and in-depth analysis of the subject has been discussed under different headings throughout the thesis.