INNOVATION OF THE PROCESS OF NICKEL PLATING OF STEEL PRODUCTS BASED ON HEAT TREATMENT

Abstract

In the context of the rapid development of global industry, the negative impact of steel corrosion on environmental resources and economic development cannot be underestimated. Oxygen corrosion and hydrogen evolution corrosion are two important reactions in steel. Many catalytic materials have been developed to prevent steel corrosion. In particular, some nickel-based materials can greatly improve the corrosion resistance of steel with controlled structure, performance, environmental protection and other advantages. X-ray diffraction analysis of both samples in the nickel-plated state shows an amorphous phase, while the heat-treated coatings have a 
crystalline phase structure. The crystalline structure improves the hardness of the coating and wear resistance. Friction and wear are evaluated by a disc tribometer. In general, it can be seen that the nickel-plated coatings have better friction and wear performance than other galvanic products. The purpose of this study is to improve the performance of steel products by heat treatment of electroless nickel coatings. The coated samples are subjected to a series of heat treatments (200 800°C) for 2 hours. The hardness of the coated samples is measured using a Vickers microhardness tester. To assess the friction characteristics and wear resistance of the coating, a dry sliding test is carried out using a needle-disk tribometer.