Corrosion of metals cannot be prevented by its__________________?
Correct answer: A. Tempering
- A. Tempering
- B. Chromising
- C. Aluminising
- D. Alloying
Explanation
Tempering changes the hardness and toughness of a metal but is not a corrosion-prevention treatment. Chromising, aluminising and suitable alloying protect the surface or produce corrosion-resistant compositions.
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