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Metallurgical Engineering · Q160

Physical Metallurgy

Engineering and GATE · Metallurgical Engineering · question 160

Q160

A material with grain size of ASTM No.6 has a lattice frictional stress 100 MN/m2 and locking parameter (Hall-Petch constant) 0.10 MN/ m^3/2 Grain size of the material is approximately

A material with grain size of ASTM No.6 has a lattice frictional stress 100 MN/m2 and locking parameter (Hall-Petch constant) 0.10 MN/
Grain size of the material is approximately
A.
45 μm
Answer
B.
35 μm
C.
4.5 μm
D.
3.5 μm

Answer: Option A

Solution

Answer: Option A
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