Corrosion resistance and oxide film characteristics of laser powder bed fusion (LPBF) copper alloys are crucial towards their practical applications in marine engineering. It is found that LPBF copper alloys usually exhibit superior corrosion resistance than their commercialized counterparts due to the improved homogeneity both in chemical elements and microstructures, which also facilitates the formation of a more compact and protective oxide film. To be noted, the dislocation tangles and elemental segregation at cellular boundaries and molten boundaries could greatly influence the corrosion behavior as well as the initial film formation process of LPBF copper alloys.
Dr. Bowei ZHANG is a Professor of University of Science and Technology Beijing (USTB). He also serves as the deputy director, Office of International Affairs, USTB and director, Office of International Affairs, Chinese Society for Corrosion and Protection (CSCP). He received his Ph.D degree from Nanyang Technological University, Singapore and joined USTB in 2018. His research interests focus on the corrosion mechanism of non-ferrous materials, additive manufactured metals and the fabrication of multi-metallic eletrocatalysts for energy conversion. He has published more than 100 peer-reviewer papers including Adv. Mater., Adv.Sci., Corro.Sci. etc.
