Recently, undergraduate students from the research group led by Professor Xu Dake and Professor Wang Fuhui at the College of Materials Science and Engineering, NEU, published a research paper in Corrosion Science, a top-tier international journal in the field of corrosion (classified as a Q1 journal by the Chinese Academy of Sciences, with an impact factor of 7.4). The paper, titled Combination of Cr-Cu-bearing pipeline steel and novel biocides as a strategy to combat microbiologically influenced corrosion, was co-authored by Wu Yalin and Li Zhilin, undergraduate students of Year 2022 in Materials Science and Engineering, who were listed as co-first authors. Professor Xu Dake and Associate Professor Wang Di served as co-corresponding authors.
Pipeline transportation is the backbone of the oil and gas industry and a vital component of national energy security. However, microbiologically influenced corrosion (MIC) has become a significant threat to pipeline safety. To address MIC issues faced by traditional pipeline steels in harsh oilfield environments, this study proposes a novel approach that combines a new Cr-Cu-bearing corrosion-resistant and antibacterial pipeline steel with a green and environmentally friendly biocide blend to mitigate MIC.
The study developed a new Cr-Cu-bearing pipeline steel by incorporating copper and chromium elements into traditional steel, significantly enhancing its antibacterial and corrosion-resistant properties and effectively inhibiting bacterial adhesion on material surfaces. Additionally, a biocide blend composed of rosin-based thiourea-pyridine quaternary ammonium salt and nanosilver particles was formulated, providing broad-spectrum sterilization while being environmentally friendly. The combination of this eco-friendly biocide with the newly developed Cr-Cu pipeline steel further improved resistance to MIC, ensuring the long-term safe operation of pipelines.
This research was supported by the National Science Fund for Distinguished Young Scholars, the Ministry of Science and Technology’s Key R&D Program, the National Natural Science Foundation of China’s Youth Science Fund, and the NEU Undergraduate Innovation and Entrepreneurship Training Program.
