Functional Tool Coating Materials Research Progress

The superhard tool coating has broad applications across various industries, including shielding, oil mining, and coal extraction. This is due to its exceptional wear, fatigue, and impact resistance properties. To mitigate these challenges, the selection of appropriate tool materials is critical to ensure sustained production efficiency. Therefore, it is essential to identify and develop coating materials with superior performance. In this paper, we present a comprehensive review of national and international research reports on tool coatings over the past few years. We summarize the findings from both domestic and international studies, focusing on the latest advancements in commonly used superhard tool coatings, such as diamond coatings and diamond-like carbon coatings. It analyzes their microstructures, phase transformation processes, mechanical properties, and formation mechanisms, while also evaluating properties such as wear resistance, corrosion resistance, and high hardness. Furthermore, we highlight the limitations of current research in this field. This review aims to provide theoretical guidance and reference information for ongoing research and technological development in tool coating materials, offering insights into potential future directions.