Solve this multiple-choice question and choose the correct option.

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Alloying effect: influence of tungsten (W) on the critical temperature of steel How does adding tungsten to steel affect the critical transformation temperature? Choose the correct trend.

Difficulty: Easy

Increases the critical temperature
Decreases the critical temperature
No significant change
First decreases, then increases

Correct Answer: Increases the critical temperature

Explanation:

ConceptCarbide-forming alloying elements such as tungsten (W), molybdenum (Mo), and vanadium (V) generally raise the critical transformation temperature(s) of steel, stabilizing ferrite/carbides and improving hot-hardness.

Final AnswerIncreases the critical temperature

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