contact corrosion

简明释义

接触腐蚀

英英释义

例句

1.The technician noted that contact corrosion 接触腐蚀 could lead to significant failures in the system if not addressed promptly.

技术员指出，如果不及时处理，接触腐蚀可能导致系统发生重大故障。

2.To prevent contact corrosion 接触腐蚀, it's important to use insulating materials between metal parts.

为了防止接触腐蚀，在金属部件之间使用绝缘材料是很重要的。

3.The engineer explained that contact corrosion 接触腐蚀 can occur when dissimilar metals are in contact with each other.

工程师解释说，当不同金属相互接触时，可能会发生接触腐蚀。

4.In marine environments, contact corrosion 接触腐蚀 is a common problem due to saltwater exposure.

在海洋环境中，由于盐水暴露，接触腐蚀是一个常见问题。

5.Regular maintenance is essential to identify signs of contact corrosion 接触腐蚀 in electrical connections.

定期维护对于识别电连接中的接触腐蚀迹象至关重要。

作文

Contact corrosion, often referred to as galvanic corrosion, is a phenomenon that occurs when two different metals come into electrical contact with each other in the presence of an electrolyte. This process can lead to significant deterioration of one or both metals involved. Understanding contact corrosion (接触腐蚀) is crucial for engineers and designers, especially when selecting materials for construction and manufacturing processes. The basic principle behind contact corrosion (接触腐蚀) lies in the electrochemical series, which ranks metals based on their electrochemical activity. When two dissimilar metals are in contact, the more active metal (anode) will corrode faster than it would if it were isolated. Meanwhile, the less active metal (cathode) will corrode at a slower rate. This differential corrosion can lead to structural failures in various applications, from bridges to electronic devices.One common example of contact corrosion (接触腐蚀) can be observed in plumbing systems where copper pipes are connected to steel fixtures. In this scenario, the copper acts as the cathode and the steel as the anode. Over time, the steel will corrode more rapidly due to the electrochemical reaction initiated by their contact. This not only affects the integrity of the steel parts but can also lead to leaks and costly repairs.To mitigate the effects of contact corrosion (接触腐蚀), several strategies can be employed. One effective method is to use insulating materials to separate dissimilar metals, thereby preventing direct electrical contact. Additionally, applying protective coatings can help shield the metals from exposure to electrolytes. For instance, galvanization, a process where a layer of zinc is applied to steel, can significantly reduce the risk of contact corrosion (接触腐蚀) by providing a sacrificial barrier against corrosion.Another approach involves using cathodic protection, which introduces a more active metal into the system to act as the anode, thus protecting the primary metal from corroding. This technique is widely used in pipelines and underground storage tanks where long-term corrosion resistance is critical.In conclusion, understanding contact corrosion (接触腐蚀) is essential for anyone involved in material selection and engineering design. By recognizing the conditions that lead to this type of corrosion and implementing preventive measures, we can significantly extend the lifespan of metal structures and components. As industries continue to innovate and evolve, addressing contact corrosion (接触腐蚀) will remain a vital aspect of ensuring safety and reliability in various applications.