For the factors / conditions listed, select those that tend to alleviate creep deformation for a...

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Mechanical Engineering

For the factors / conditions listed, select those that tend toalleviate creep deformation for a metal sample with a randompolycrystalline microstructure.

a. Raise the service temperature that the part is exposedto.

b. Substitute the metal for one with a higher melting point.

c. Decrease the applied stress on the metal part.

d. Decrease the average grain size of the metal part.

e. Increase the grain count of the metal part (for a fixedvolume).

f. Apply an insulative (non-structural) ceramic coating to thepart.

g. Switch to a single crystal or textured polycrystallinemicrostructure.

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