Journal of the Japan Institute of Metals and Materials
Online ISSN : 1880-6880
Print ISSN : 0021-4876
ISSN-L : 0021-4876
Dimensional Changes due to Annealing of Plastically Cold-Worked Metals (2). On Changes in Length and Diameter due to Annealing of Low Chrbon Steel Bars Plastically Elongated or Compressed
Harujiro SekiguchiMichio Inagaki
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1955 Volume 19 Issue 1 Pages 28-31

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Abstract

The changes in length, volume and diameter due to annealing were investigated with low carbon steel bars elongated or compressed at the room temperature, and the results with elongated specimens and compressed specimens were compared. The authors have discovered the following phenomena: In the case that a low carbon steel bar plastically elongated or compressed is annealed at a low temperature, the dimensional changes due to annealing occur in the same direction as the deformation due to working before annealing. We cannot explain yet this phenomenon satisfactorily, but we propose to this phenomenon “the same direction change of dimension due to annealing after plastic deformation.” In the case of a low carbon steel bar annealed at a higher temperature above A1 transformation point, the length decreases and the diameter increases after the annealing, regardless of working and the direction of deformation due to working.

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