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The largest size of immobilised segment of dislocation in a Frank...

This question belongs to Metallurgical Engineering Physics Of Metals In Metallurgy
Physics of Metals in Metallurgy
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The largest size of immobilised segment of dislocation in a Frank Read (FR) source contained in a polycrystalline material is of the order of grain size. In a metal of 10 μm grain size, the shear stress required to operate such a FR source is 100 MPa. If the grain size in the same metal is reduced to 10 μm, the shear stress required to operate such FR source would be . . . . . . . . MPa.

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Correct Answer: Option C
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