Undercut is a type of corrosion that occurs when there is a loss of material from the bottom edge of a component. This can happen due to several reasons, including:
-Exposure to high temperatures
-Exposure to corrosive chemicals
-Mechanical damage (e.g., from impact or abrasion)
Prevention of undercut typically involves using materials that are resistant to the factors that cause it. For example, if exposure to high temperatures is the issue, then using a heat-resistant alloy would be one solution. If exposure to corrosive chemicals is the problem, then selecting a material with good corrosion resistance would be the way to go. Finally, if mechanical damage is the root cause, then design changes (e.g., reinforcement of vulnerable areas) or protective coatings may be used to mitigate the risk of undercut occurring.