Abstract

The dimensional changes due to low temperature annealing of cold-worked low carbon steel bars occur in the same direction as the deformation due to working before annealing, but the dimensional changes of high carbon steel bars occur in the opposite direction to the deformation due to working before annealing. As the authors called the former “the same direction change of dimension due to annealing after plastic deformation”, they will call the later “the opposite direction change of dimension due to annealing after plastic deformation”. On the dimensional changes due to high temperature annealing of low carbon steel bar, th length decreases and the diameter increases after the annealing, regardless of working or non-working. But the dimensional changes due to high temperature annealing of cold-worked high carbon steel bar occur in the same direction as those due to the low temperature annealing and the percentages of dimensional changes are larger than those in the case of low temperature annealing.

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