a)(5%) Briefly explain the difference between hardness and hardenability.b)(5%) What is the main difference between eutectic, eutectoid...

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Mechanical Engineering

a)(5%) Briefly explain the difference between hardness andhardenability.b)(5%) What is the main difference between eutectic,eutectoid and peritectic reactions? c)(10%) A cylindrical piece of5140 steel heated to γ region and OQ. If the hardness at thesurface must be ≥ 35HRC, what is the maximum allowable dia.?Explain.

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