environmental corrosion的意思|示意

'

Environmental corrosion is the deterioration of the physical or structural integrity of a material caused by the action of its environment. It involves the electrochemical corrosion, oxidation, abrasion, erosion, UV degradation, and biological activity of a material. The environment includes air, water, and soil, and the action of environmental factors such as weather and temperature.

Environmental corrosion can weaken or damage the material, leading to failure or reduced performance and life expectancy. It is an important factor that must be considered when designing infrastructure, products and components.

Environmental corrosion can be classified as either uniform or localized corrosion. Uniform corrosion occurs when the entire surface of the material is affected. It is usually caused by the presence of iron or steel in the environment, and it affects all parts of the material at the same rate. Localized corrosion affects only specific parts of the material, and it is usually caused by a combination of factors such as air, water, temperature, stress, and pH.

The most common type of environmental corrosion is known as rust. Rust is an oxidation reaction between iron, oxygen, and water. It causes a film or coating on the surface of the metal, which can reduce its strength and cause it to become weak or brittle.

The best way to prevent environmental corrosion is to design materials and components that are resistant to corrosion and protect them with coatings or barrier layers. Other strategies include controlling the environment, such as controlling the temperature, pH, and other factors, and using corrosion inhibitors or corrosion-resistant alloys.