GATE MT 2018 Q9. Which of the following materials are protected by passivation (i.e., formation of a thin adherent film on the surface) from corrosion? P.Aluminium alloys Q.Mild steel R.Stainless steel S.Silver
GATE MT 2018 Q9. Which of the following materials are protected by passivation (i.e., formation of a thin adherent film on the surface) from corrosion? P.Aluminium alloys Q.Mild steel R.Stainless steel S.Silver
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Option D is correct
Option D is correct
See lessCorrect answer is option D. Passive film materials are stainless steels (Cr2O3) and Aluminium alloys ( Al2O3).
Correct answer is option D.
Passive film materials are stainless steels (Cr2O3) and Aluminium alloys ( Al2O3).
What about Mild Steel & Silver ???
What about Mild Steel & Silver ???
See lessAl forms Al2O3 and SS forms Cr2O3
Al forms Al2O3 and SS forms Cr2O3
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