What is the effect of stress on corrosion?
Stress is a major influencing factor on the rate and form of corrosion. As discussed in FAQ#5-6 above, stress can lead to cracking and fatigue depending the nature and magnitude of the stress present. If stress is below the threshold for cracking or fatigue, there would be no noticeable effect on corrosion. However, in unevenly stressed parts, the highly stressed area would act as anode and can suffer from preferential corrosion, for example, the nail head and tip in a nail and the bend section in a U-bend.
