Amine stress corrosion cracking is a term applied to the cracking of steels under the combined actions of ________ and __________ in aqueous alkanolamine systems used to remove/absorb H²S and/or CO² and their mixtures from various gas and liquid hydrocarbon streams.
Answer(s): D
______ is similar to HIC but is a potentially more damaging form of cracking which appears as arrays of cracks stacked on top of each other. The result is a through thickness crack that is perpendicular to the surface and is driven by high levels of stress.
Answer(s): B
Weld heat affected zone graphitization is most frequently found in the heataffected zone adjacent to welds in a narrow band, corresponding to the low temperature edge of the heat affected zone, In multi-pass welded butt joints, these zones overlap each other covering the entire cross section.Because of its appearance, this type of graphitization is called________.
At a given pressure, the H²S concentration in the sour water _________ as temperature _________.
In order for PASCC to occur the material must be ______.
Answer(s): C
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