Question

in the design of parts, it is genarally a good idea to avoid region or points ofstress

concentration since these regions are susceptible to corroisn. give examples of the

things that can be done to avoid stress raisers.

salt(NaCl) is stored in an aluminiunm container.the container is used repeatedly in a

humid region.

(a) is there a possibility of cathodic and anodic reaction taking place?

(b) if yes, identify the reaction

Normally, aluminum forms a strong self protective oxide coating that prevents corrosion. Salt water disrupts this coating, and as a result, aluminum will localize corrosion and large pits will be seen in the aluminum.