The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element ?
Correct answer: B. Carbon
- A. Silicon
- B. Carbon
- C. Phosphorous
- D. Chromium
Explanation
The yield-point effect in annealed low-carbon steel is caused mainly by interstitial carbon and nitrogen atoms pinning dislocations. Since nitrogen is not listed, carbon is the appropriate choice.
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