Question

Which of the following is/are the characteristics of oxide film that exhibits better resistance to erosion-corrosion?

(a) Hard

(b) Dense

(c) Adherent

(d) Hard, dense and adherent

I have been asked this question in a national level competition.

I need to ask this question from Eight Forms in section Eight Forms of Corrosion of Corrosion Engineering

Answer 1

The correct answer is (d) Hard, dense and adherent

The explanation is: Erosion corrosion is the type of corrosion that results in mechanical damage of the metal due to the high velocities of corrosive solutions. And a hard, dense, and adherent oxide film can exhibit better resistance to erosion-corrosion.