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______ 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.
______ 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.A . MICB ....
The removal of surface material by impacting materials is called:
The removal of surface material by impacting materials is called:A . ErosionB . Erosion corrosionC . Erosion or erosion corrosionD . IPC (imparting particle corrosion)View AnswerAnswer: A
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________.
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,...
Wet H²S services or _________ acid services are process where hydrogen diffuses into the steel and hydrogen embrittlement (HE) is an issue.
Wet H²S services or _________ acid services are process where hydrogen diffuses into the steel and hydrogen embrittlement (HE) is an issue.A . HFB . SulfuricC . CausticD . HCLView AnswerAnswer: A
The presence of _________ can destabilize the scale and turn it into a nonprotective scale.
The presence of _________ can destabilize the scale and turn it into a nonprotective scale.A . H²SB . O²C . H²D . H²OView AnswerAnswer: D
Which of the following does not increases the likelihood of atmospheric corrosion?
Which of the following does not increases the likelihood of atmospheric corrosion?A . Bird poopB . Increasing annual rainfallsC . Locations where moisture is trappedD . Increasing operating pressuresE . Increasing amounts of airborne contaminatesView AnswerAnswer: D
___________ is when oxygen reacts with carbon steel and other alloys at high temperatures converting the metal to oxide scale.
___________ is when oxygen reacts with carbon steel and other alloys at high temperatures converting the metal to oxide scale.A . High temperature corrosionB . OxidationC . DealloyingD . Thermal fatigueView AnswerAnswer: A
___________ cracking has been a major problem in coke drum shells.
___________ cracking has been a major problem in coke drum shells.A . StressB . CarburizationC . Thermal fatigueD . SulfideView AnswerAnswer: C
SOHIC is driven by localized stresses so that __________ is somewhat effective in preventing SOHIC damage.
SOHIC is driven by localized stresses so that __________ is somewhat effective in preventing SOHIC damage.A . PWHTB . PreheatC . TemperatureD . None of the aboveView AnswerAnswer: A
In fired heater tubes, dissimilar weld metal cracking forms primarily on the _______ of the material.
In fired heater tubes, dissimilar weld metal cracking forms primarily on the _______ of the material.A . OutsideB . InsideC . WeldsD . All of the aboveView AnswerAnswer: A
