Pitting corrosion is a localized form of corrosion that leads to the creation of small holes or pits in a material, often metals. This type of corrosion occurs when protective oxide layers are damaged, allowing corrosive agents, such as chlorides, to penetrate and attack the underlying metal. Pitting can be particularly dangerous because it can weaken structures without significant overall material loss. This phenomenon is commonly found in stainless steel, aluminum, and other alloys exposed to harsh environments, such as marine settings. Pitting corrosion can be difficult to detect early, making it essential to monitor and maintain materials regularly to prevent structural failures.