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1 Fretting corrosion is primarily a surface damage phenomenon occurring as a result of small cyclic movements between two materials caused by cyclic loading. Fretting damage can occur in vacuum, although it then would be better to speak of fretting, rather than fretting corrosion.
The cause for corrosion is primarily due to the. presence of dissolved oxygen and carbondioxide. The presence of dissolved. oxygen is found as key cause of feed water, boiler water and even condensate. corrosion in boiler system whereas carbon dioxide is known to cause corrosion in. return line condensate system.