Physics · Properties of Matter
How does grain refinement generally affect the mechanical properties of a metallic material, specifically regarding its toughness?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Material with a finer grain size has higher toughness than material with a coarser grain size.✓
- 2Both materials have the same toughness, as toughness depends only on the chemical composition.
- 3Toughness can be determined directly by comparing only the initial elastic slopes.
- 4Material with a finer grain size has lower toughness than material with a coarser grain size.
Correct answer
Material with a finer grain size has higher toughness than material with a coarser grain size.
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