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.
Mechanical Engineering
Engineering Materials
Difficulty: Easy
Choose an option
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AIncreases the critical temperature
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BDecreases the critical temperature
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CNo significant change
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DFirst decreases, then increases
Answer
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