Abstract：
In this work, we studied the microbiologically influenced corrosion mechanism of Cu by marine ammonifying bacterium Alcaligenes aquatilis. Through immersion experiments, we found that A. aquatilis could accelerate the corrosion rate of copper, resulting in the development of pits. In the presence of A. aquatilis, the morphology and composition of the corrosion products differed from the abiotic samples, and we found that Cu2O was the main corrosion product. By analyzing the biotic medium and experimental NH3 addition, we verified that NH3 was the main component that intensified copper corrosion. Furthermore, we found that NH3 played a catalytic role in the corrosion of Cu in the presence of A. aquatilis.
摘要：
在这项工作中,我们研究了海洋氨化细菌Alcaligenesaquatilis对铜的微生物腐蚀机理。通过浸泡实验,我们发现aquatilis可以加速铜的腐蚀速度，导致坑的发展。在Aquatilis的存在下，腐蚀产物的形态和组成与非生物样品不同，我们发现Cu2O是主要的腐蚀产物。通过分析生物培养基和实验NH3添加量，我们验证了NH3是加剧铜腐蚀的主要成分。此外，我们发现NH3在A.aquatilis的存在下对Cu的腐蚀起催化作用。
