Improvement of surface properties of low carbon steel with grafen content composite coating

Composite coatings have a wide range of applications in industrial and technological fields due to their superior properties. There is a need for coating layers whose use in mechanical, automotive, paper shaft, food and manufacturing industry, and thickness starts at nm and reaches up to mm depending on the area of use. Features such as superior mechanical properties, high wear resistance, high thermal stability are required from the coatings to be produced for said applications. Composite coatings are a good candidate for such applications. In this study, Nickel and Nickel / Graphene composite coating layers on St37 steel substrate were produced by using Watt type bath in three different types of current such as Direct Current (DC), Pulse Current (PC) and Pulse Reverse Current (PRC) depending on different amounts of graphene. The effects of current density on the properties of coatings produced in different current types were investigated. Produced coatings were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) method. The effects of current type on hardness and wear behaviour were investigated.