Stainless steel is an important material used in many applications due to its mechanical strength and corrosion-resistant properties. The high corrosion resistance of stainless steel is provided by the passive film. Different stainless steels have different alloy elements and surface properties which could have a significant influence on bacterial attachment to the surface and thus might result in different microbial corrosion behaviours. In this study, the effect of adhesion of sulfate-reducing bacteria (SRB) on corrosion behaviour in artificial seawater on different stainless steels was investigated. Stainless steel materials used were SS 410, SS 420, SS 316 and DSS 2205 and pure chromium. The contact angle was measured to study the effect of surface properties of materials. Adhesion was measured by counting cells attached to the surface of materials. The corrosion behaviour of the materials was measured by electrochemical testing including measuring open circuit potential, electrochemical impedance spectroscopy and potentiodynamic behaviour. The long-term corrosion behaviour of each material was studied after six months of exposure by measuring weight loss and surface analysis with scanning electron microscope with energy-dispersive X-ray analysis. Hydrophobicity had a strong effect on bacterial attachment. Alloying elements e.g. nickel also had shown its ability to attract bacteria to adhere on the surface. However, the corrosion rate of different materials is determined not only by bacterial attachment but also by the stability of the passive film which is determined by the alloying elements, such as Mo and Cr. Chromium showed high resistance to corrosion, possibly due to toxicity on bacterial attachment. The nature of bacterial attachment and corrosion behaviour of the materials are discussed.

不锈钢因其机械强度和耐腐蚀特性而成为许多应用中使用的重要材料。不锈钢的高耐腐蚀性是由钝化膜提供的。不同的不锈钢具有不同的合金元素和表面特性，这可能对细菌在表面的附着产生重大影响，从而可能导致不同的微生物腐蚀行为。在本研究中，研究了硫酸盐还原菌（SRB）的粘附对不同不锈钢在人造海水中的腐蚀行为的影响。使用的不锈钢材料为 SS 410、SS 420、SS 316 和 DSS 2205 以及纯铬。测量接触角以研究材料表面性能的影响。通过对附着在材料表面的细胞进行计数来测量粘附力。通过电化学测试来测量材料的腐蚀行为，包括测量开路电位、电化学阻抗谱和动电位行为。通过测量重量损失并使用扫描电子显微镜和能量色散 X 射线分析进行表面分析，研究了每种材料暴露六个月后的长期腐蚀行为。疏水性对细菌附着有很强的影响。镍等合金元素也显示出其吸引细菌粘附在表面上的能力。然而，不同材料的腐蚀速率不仅取决于细菌的附着，还取决于钝化膜的稳定性，而钝化膜的稳定性则由合金元素（例如Mo和Cr）决定。铬表现出很高的耐腐蚀性，可能是由于对细菌附着的毒性。 讨论了细菌附着的性质和材料的腐蚀行为。