The main form of iron carbide found in 18-8 steel________________?
Correct answer: C. Austenite
- A. Martensite
- B. Ferrite
- C. Austenite
- D. Pearlite
Explanation
18-8 stainless steel is predominantly austenitic because its chromium-nickel composition stabilizes the face-centred cubic austenite phase. Strictly, the phrase “form of iron carbide” is inaccurate, since austenite is a steel phase rather than iron carbide.
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