Researchers have made significant strides in enhancing the durability and performance of aluminum alloys, particularly the widely used 2024 aluminum alloy, which is prevalent in the aerospace, automotive, and maritime sectors. A recent study led by Li Yang from the School of Materials Science and Engineering at Yingkou Institute of Technology has explored how the temperature during the deposition of diamond-like carbon (DLC) thin films can affect their properties and, consequently, the performance of aluminum alloys.
DLC films are known for their impressive hardness and low friction, making them an attractive solution for industries that require materials that can withstand wear and tear. In the maritime industry, where components face harsh environments and need to maintain integrity over time, the application of DLC films could lead to longer-lasting materials and reduced maintenance costs. This can be particularly beneficial for ship hulls, propellers, and other critical components that are prone to corrosion and wear.
In their study, published in the journal ‘Crystals,’ Yang and his team utilized plasma-enhanced chemical vapor deposition (PECVD) technology to apply DLC films on 2024 aluminum alloy. They found that as the deposition temperature increased, the thickness of the DLC film decreased, which is a key factor in bonding strength. “With the increase in deposition temperature, the thickness of DLC film decreased from 8.72 μm to 5.37 μm, and the film bonded well with the substrate,” Yang explained. This reduction in thickness, paired with the formation of a transition layer rich in silicon, enhances the bond between the film and the aluminum substrate, ultimately improving the film’s stability and performance.
However, the research also highlights an important caveat: if the deposition temperature exceeds the aging temperature of the aluminum alloy, it can adversely affect the alloy’s properties. Therefore, Yang emphasizes the need to carefully manage deposition temperatures to ensure optimal performance. “The deposition temperature should be below the aging temperature of the 2024 aluminum alloy for coating,” he noted.
This research opens up commercial opportunities, especially for companies in the maritime sector looking to improve the longevity and efficiency of their vessels. By adopting DLC films, manufacturers could enhance the performance of lightweight alloys used in shipbuilding, leading to vessels that are not only more efficient but also more resistant to the rigors of the sea.
As industries strive to meet increasing demands for efficiency and durability, the findings from Yang’s research could pave the way for innovative applications of DLC films in maritime technology. With the right implementation, this technology could significantly reduce wear and tear on critical components, ultimately saving costs and improving operational efficiency in the long run.
