Electrodeposition technique was used to build Nickel Tungsten composite coatings at varying temperatures in this sample. The effects of temperature on the Ni-W composite coatings' composition, crystal structure, grain size, micro hardness, and surface morphology were analyzed in depth. With increasing temperature, grain size shrank, while micro strain and residual stress increased. At high temperatures, the composite coating's hardness reached its maximum. When the bath temperature was elevated, the tungsten content improved. On the surface, Ni-W films were bright and evenly coated. Ni-W film deposits were also nanoscale, with an average crystalline dimension of 75 nanometers. At 90°C, Ni-W had a micro hardness of 249 VHN.

Keywords: Electrodeposition, electrolytic bath, crystalline size, VSM, Ni-Fe, X-ray diffraction, VHN, SEM.