What should be done if a metal structure has been exposed to high temperatures?

When a metal structure has been exposed to high temperatures, it is crucial to inspect for thermal damage. High temperatures can alter the physical and mechanical properties of the metal, leading to issues such as reduced strength, increased brittleness, or altered ductility. Conducting a thorough inspection allows for the identification of any cracks, warping, or other types of thermal damage that may not be immediately visible.

Identifying thermal damage is essential to ensure structural integrity and safety before considering any repair or replacement actions. This inspection can involve visual checks, non-destructive testing, or other examination methods to evaluate the extent of the damage and determine the best course of action for repair or maintenance. Recognizing these effects early on is vital in aerospace applications, where safety and reliability are paramount.

The other options, while they may seem plausible in isolation, do not address the fundamental need for assessment following thermal exposure. Directly replacing the entire structure without inspection could lead to unnecessary costs and downtime. Applying additional coatings without addressing underlying damage may not provide the needed protection and can even exacerbate existing issues. Similarly, assuming no action is necessary neglects the potential consequences of thermal exposure, which could ultimately compromise safety.