On decreasing the grain size of a polycrystalline materia... — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is__________________?

Correct answer: B

Explanation

Decreasing grain size generally increases strength and hardness (Hall-Petch effect), but it can sometimes decrease toughness.

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