Which type of corrosion results in relatively uniform metal loss?

Which type of corrosion results in relatively uniform metal loss?

• A. Erosion and erosion/corrosion
• B. Stray current
• C. General
• D. Pitting

Answer: (C)

General corrosion is characterized by relatively uniform metal loss across a surface. This type of corrosion occurs evenly throughout the material, leading to a gradual thinning of the metal without localized effects. It typically affects the entire exposed area of the metal, resulting in a slow and predictable deterioration process. In contrast, other types of corrosion lead to different degradation patterns. Erosion and erosion/corrosion can involve loss of material due to mechanical or fluid dynamics combined with corrosion processes, but these do not result in even wear. Stray current corrosion is localized and occurs when electrical currents pass through materials unintentionally, which may lead to uneven and severe deterioration in specific areas. Pitting is marked by localized, small holes or "pits" that develop in the metal, which also results in uneven metal loss. Therefore, general corrosion stands out for its uniformity in how metal loss occurs across the entire surface.

General corrosion is characterized by relatively uniform metal loss across a surface. This type of corrosion occurs evenly throughout the material, leading to a gradual thinning of the metal without localized effects. It typically affects the entire exposed area of the metal, resulting in a slow and predictable deterioration process.

In contrast, other types of corrosion lead to different degradation patterns. Erosion and erosion/corrosion can involve loss of material due to mechanical or fluid dynamics combined with corrosion processes, but these do not result in even wear. Stray current corrosion is localized and occurs when electrical currents pass through materials unintentionally, which may lead to uneven and severe deterioration in specific areas. Pitting is marked by localized, small holes or "pits" that develop in the metal, which also results in uneven metal loss. Therefore, general corrosion stands out for its uniformity in how metal loss occurs across the entire surface.