__________ is a change in the microstructure of certain carbon steels and 0.5 Mo steels after long
term operation in the 800º F to 1100º F range.
A
What structure is 304 stainless steel?
B
_________ is the result of cyclic stress caused by variations in temperature.
B
General or localized corrosion of carbon steels and other metals caused by dissolved salts, gases,
organic compounds or microbiological activities is called ________.
C
What structure is 410 stainless steel?
A
The sudden rapid fracture under stress (residual or applied) where the material exhibits little or no
evidence of ductility or plastic deformation is called _________.
D
What structure is 409 stainless steel?
D
Low alloy steels contain a maximum of _______ chrome.
D
Which of the following can be affected by 885º F Embrittlement?
E
For 5Cr-0.5Mo, what is the threshold temperature for creep?
B
________ has been a major problem on coke drum shells.
A
Thermal fatigue cracks propagate ________ to the stress and are usually dagger shaped,
transgranular and oxide-filled.
C
Inspection for wet H2S damage generally focuses on _____ and ______.
E
________ is a form of erosion caused by the formation and instantaneous collapse of innumerable
tiny vapor bubbles.
B
With CUI, corrosion rates __________ with increasing metal temperatures up to the point where the
water evaporates quickly.
B