Decarburisation of steel__________________?
Correct answer: D. All A., B. and C.
- A. Is the removal of carbon from iron carbide (Fe3C)
- B. Affects its crystalline structure
- C. Is favoured by CO2
- D. All A., B. and C.
Explanation
Decarburisation removes carbon from iron carbide, Fe₃C, and changes the steel's composition and structure; oxidising gases such as CO₂ favour this reaction. Thus all three statements describe decarburisation.
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