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Asked: 2021-03-06T02:40:59+05:30 In:

GATE MT 2021 Q8. Which one of the following is FALSE for creep deformation?

Poll Results

73.68%(A) The minimum creep rate is obtained in the primary stage (stage I). ( 42 voters )
12.28%(B) Creep resistance decreases with decrease in grain size. ( 7 voters )
3.51%(C) Coble creep occurs via grain boundary diffusion. ( 2 voters )
10.53%(D) Nabarro-Herring creep occurs via lattice diffusion. ( 6 voters )
Based On 57 Votes

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    1 Answer

    1. Copper Student
      This answer was edited.

      Answer: Option A Creep deformation: Time-dependent permanent plastic deformation when the specimen is subjected to a constant tensile load at an elevated temperature. The minimum creep rate is obtained in the secondary stage (Stage 2) as a result of a balance between strain hardening and recovery. CRead more

      Answer: Option A

      Creep deformation: Time-dependent permanent plastic deformation when the specimen is subjected to a constant tensile load at an elevated temperature.

      The minimum creep rate is obtained in the secondary stage (Stage 2) as a result of a balance between strain hardening and recovery.

      Creep resistance decreases with a decrease in grain size as GRAIN BOUNDARY SLIDING can add to creep deformation at high temperatures.

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      GATE MT 2021 Q8. Which one of the following is FALSE for creep deformation?
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