Pelapisan Baja HSS Menggunakan Ni-Al₂-O₃- Berbasis Arus Pulsa: Studi Awal di Laboratorium Fisika Material UNJ 1). Cahya Syfaaunnaasi 2). Dr. Umiatin M.Si 3). Prof. Dr. Esmar Budi M.T
Universitas Negeri Jakarta
Abstract
This preliminary study investigates the coating of High Speed Steel (HSS) using a composite material of nickel (Ni) and aluminum oxide (Al₂-O₃-) through the pulse current electrodeposition method. This technique was chosen due to its ability to produce more uniform coatings and improve the adhesion between the substrate and the coating material. The objective of this project is to evaluate the characteristics of the resulting coating, including surface morphology, thickness, and adhesion strength. The deposition process was carried out at the Materials Physics Laboratory of UNJ using specific pulse current parameters and varied deposition times. Initial results indicate that the pulse current method is effective in forming a Ni-Al₂-O₃- layer on the HSS surface and has the potential to enhance the wear and corrosion resistance of the material. This study serves as a foundation for the development of high-performance coating materials for machining and tooling applications.
