Which method can be used to remove corrosion from highly stressed steel surfaces?

Using fine-grit aluminum oxide is an effective method for removing corrosion from highly stressed steel surfaces due to its abrasive characteristics, which allow it to effectively abrade away corrosion without significantly damaging the underlying steel surface. This method provides a balance between cleaning the affected area and preserving the integrity of the steel, particularly important for parts that are under stress. The fine grit helps to ensure that the removal process does not introduce additional surface irregularities or weaken the material, which is crucial for highly stressed components where structural integrity is paramount.

In contrast, wire brushes may be too aggressive and can potentially damage or gouge the surface of the steel, compromising its strength. High-grit carbon paper, while also abrasive, may not be as effective as aluminum oxide in effectively addressing the specific types of corrosion found on highly stressed steel. A stiff, nonmetallic brush may not have the necessary abrasiveness to remove corrosion effectively, and it may simply smear or push corrosion products around rather than removing them.

Therefore, the choice of fine-grit aluminum oxide combines effective removal of corrosion while maintaining the surface characteristics essential for the performance of highly stressed steel components.