Kiki4933 Kiki4933
  • 13-01-2021
  • Chemistry
contestada

Explain why the strength of a polycrystalline metal at room temperature decreases as its grain size increases.

Respuesta :

Kalani569
Kalani569 Kalani569
  • 13-01-2021

Answer:

Metals with larger grains have less grain-boundary area per unit volume, and hence will not be as able to generate as many entanglements at grain boundaries, thus the strength will be lower.

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