Hydrogen damage stress corrosion cracking

Erosion —corrosion, fretting corrosion, impingement attack, cavitation damage stress corrosion cracking, hydrogen cracking, corrosion fatigue... 

J. Wooddi, R. Kieselbach, Damage due to hydrogen embrittlement and stress corrosion cracking, Eng. Fail. Anal 7 (2000) 427-450. 

There are other corrosion processes that will not be discussed here, including intergranular corrosion, hydrogen damage, stress corrosion cracking, and corrosion fatigue. The reader is referred to the excellent volume edited by Stratmann and Frankel for a more detailed discussion of all corrosion processes [16]. 

The measurement of process fluid corrosivity should be supported by measurements of the chemical composition of the different fluid phases present since fluid composition can have an important influence upon corrosion rates, hydrogen damage, stress corrosion cracking, etc. 

Cathodic protection can have a harmful effect in the case of so-called overprotection (the potential of steel below -1.1 V vs. the CSE), as the metal can be damaged by hydrogen and the coatings delaminated. Also, cases are known of corrosion cracking of pipelines (SCC) covered by cathodic protection due to the coimnon interaction of a car-bonate/bicarbonate environment formed as the result of cathodic processes and cyclic changes of stress (Procter, 1986). More infor-... 

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