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Discussion :: GATE Metallurgical

  1. 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/m3/2 
    Yield strength of the material is approximately
    2. A.
    100 MPa
    B.
    115 MPa
    C.
    165 MPa
    D.
    215 MPa

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    Answer : Option B

    Explanation :

    -NA-

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