What property describes a material's capability to be drawn into thinner cross-sections________________?
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Answer: B. ductility
Explanation
Ductility is the mechanical property that permits a material to be drawn out into a thin wire or cross-section under tensile stress. Ductile metals can undergo extensive plastic deformation without fracturing when pulled through drawing dies. This property is essential for manufacturing metallic wires, thin tubes, and complex structural extrusions. Metallurgical ductility is typically measured by percentage elongation and reduction of area in tensile tests. Copper, aluminum, and mild steel exhibit high ductility, allowing cold working into various commercial shapes. Crystal slip systems within metal microstructures enable atoms to slide past each other without breaking bonds.
Plasticity is the general ability of a material to deform permanently without breaking, without specifying wire drawing. Elasticity describes temporary deformation that recovers fully once applied mechanical loads are removed. Malleability refers to compressive working capability, such as hammering or rolling metals into thin sheets.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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