The presence of which additional substance(s) will accelerate the corrosion of steel in the presence of sulfur compounds at high temperature?
How can temper embrittlement be prevented if a material contains critical levels of the appropriate impurity elements and is exposed in the embrittling temperature range?
The form of corrosion most often caused by sulfidation is typically described as:
Convection section soot blowers that have steam supplies without a steam trap can cause:
Sigma phase embrittlement can occur in which of the following piping materials operating at temperatures of 1000°F to 1750°F (538°C to 954°C)?
If thermal shock damage may be present, which of the following should be checked?
An inspector observes sharp-edged pitting in piping immediately downstream from an orifice. This damage has most likely resulted from which damage mechanism?
An inspector has discovered significant cracking in a T-joint where hot and cold hydrogen-containing streams are mixing in a hydroprocess unit. What damage mechanism should the inspector suspect is the cause?
Which of the following generally manifests itself as a subsurface damage mechanism?
Which of the following is the best description of the surface appearance of metals with chloride stress corrosion cracking?
The stream from a crude atmospheric overhead goes to the tube side of a shell-and-tube condenser with a temperature of 300°F (149°C) and a pressure of 10 psig (69 kPa). As the stream begins to condense water, its hydrochloric acid content lowers the water pH to about 4.0. Which of the following would be the best alloy selection for the tubes with cooling water on the shell side?
The remaining life of a component susceptible to creep damage can be cut in half by a/an:
Which of the following can increase the corrosion rate of carbon steel via hydrofluoric (HF) acid corrosion?
300 series austenitic stainless steels susceptible to polythionic acid stress corrosion cracking (PTA SCC) can become sensitized when heated in the range of: