Galvanipárban

Galvanipárban is a Hungarian term that translates to "in galvanic pair" or "galvanically coupled." It refers to a situation where two dissimilar metals are in direct or indirect electrical contact, often in the presence of an electrolyte. This setup leads to the formation of a galvanic cell, where one metal acts as the anode and the other as the cathode. The more electrochemically active metal will corrode preferentially, while the less active metal will be protected from corrosion. This principle is fundamental to understanding and preventing corrosion in various engineering applications, such as in pipelines, marine structures, and electrical connections. The rate of galvanic corrosion depends on several factors, including the types of metals involved, the surface area ratio of the anode to the cathode, the conductivity of the electrolyte, and the environmental conditions. Understanding the galvanic series, which ranks metals and alloys based on their electrochemical potential, is crucial for predicting which metal will corrode in a galvanic pair. For instance, when steel is in contact with copper in a saline environment, the steel will act as the anode and corrode, while the copper will be protected. This phenomenon can be either detrimental, leading to accelerated degradation of one of the metals, or beneficial, as in the case of sacrificial anodes used to protect larger structures from corrosion.