a) What is the difference between crevice corrosion and pitting? (3 pts)
b) The plates in the drawing below need to be joined with welds. Describe how you would design the weld to prevent crevice corrosion. (5 pts)
c) In the forms of localized corrosion we concentrated on (crevice, pitting, and stress-corrosion cracking), what stage lasts longer: initiation or propagation? (2 pts)
d) What is a common trait shared among the metals/alloys most susceptible to localized corrosion attack? (2 pts)