In Base metal alloys, Corrosion resistance occurs due to___________________?
Correct answer: D. Passivity
- A. Co-efficient of Thermal Expansion
- B. High Fusion Temperature
- C. High Molecular Weight
- D. Passivity
Explanation
Base-metal alloys such as chromium-containing alloys resist corrosion through passivation, in which a thin, adherent oxide film blocks further chemical attack. Fusion temperature, molecular weight, and thermal expansion do not provide this protective mechanism.
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