Page 394 - Challenges in Corrosion Costs Causes Consequences and Control(2015)

372 CONSEQUENCES OF CORROSION

Figure 5.69 Circumferential crack in the tube. (Figure originally published in Reference 26.
Reproduced with permission of the Canadian Institute of Mining, Metallurgy and Petroleum.
www.cim.org.)

Figure 5.70 Chloride stress corrosion cracking in stainless steel. (Figure originally published
in Reference 26. Reproduced with permission of the Canadian Institute of Mining, Metallurgy
and Petroleum. www.cim.org.)

at a shallow circumferential groove and corrosion of the fracture occurred after rup-
ture. There was no evidence of SCC.
Hydrogen-Induced Cracking (Hic) This mode of failure of a component
involves hydrogen atoms absorbed in the steel leading to the development of internal
cracks in low-strength steels. The cracks generally lie parallel to the rolling plane
and the surfaces of the steel component. Residual or applied stress is not needed for
HIC development.