Copper–nickel (CuNi) and graphene nanoplatelet-reinforced CuNi (CuNi-G) nanocomposite coatings were prepared on the surface of stainless-steel substrates in a citrate bath using direct current (DC), pulse current (PC), and pulse reverse current (PRC) electrodeposition techniques. The effect of various electrodeposition currents on the morphology, composition, contact angle, microstructure, microhardness, and wear performance of the coatings were studied. Substantial changes in the surface morphology and microstructure of CuNi-G nanocomposite coatings were observed. The results show that the incorporation of G significantly enhanced the microhardness and wear resistance of electrodeposited coatings. PC and PRC electrodeposited CuNi-G nanocomposite coatings show higher microhardness and wear resistance than DC electrodeposited coatings because of smaller crystallite size, higher content of G, and lower surface roughness.

使用直流 (DC)、脉冲电流 (PC) 和脉冲反向电流在柠檬酸盐浴中在不锈钢基材表面制备铜镍 (CuNi) 和石墨烯纳米片增强的 CuNi (CuNi-G) 纳米复合涂层(PRC) 电沉积技术。研究了不同电沉积电流对涂层形貌、成分、接触角、显微组织、显微硬度和磨损性能的影响。观察到 CuNi-G 纳米复合涂层的表面形貌和微观结构发生了实质性变化。结果表明，G的掺入显着提高了电沉积涂层的显微硬度和耐磨性。