During the recovery of a cold-worked material, which of the following statement(s) is (are) true?
| All of the internal strain energy is relieved. |
| There is some reduction in the number of dislocations. |
| There is a significant reduction in the number of dislocations, to approximately the number found in the precold-worked state. |
| The thermal conductivity is recovered to its precold-worked state. |
| The metal becomes more ductile, as in its precold-worked state. |
| Grains with high strains are replaced with new, unstrained grains. |
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