All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?
Correct answer: A. Nickel
- A. Nickel
- B. Vanadium
- C. Molybdenum
- D. Chromium
Explanation
Nickel improves toughness, strength, and corrosion resistance with comparatively little loss of ductility. Vanadium, molybdenum, and chromium strengthen steel and generally increase hardness at the expense of ductility.
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