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The Recovery of Elastic Properties at 35 °C in TRIP 700 Steel Following Deformation

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Abstract

The influence of plastic deformation on the elastic properties that determine the magnitude of springback following forming was investigated using dynamic modulus analysis. For this study, the elastic modulus of TRIP 700 steel was measured continuously at 35 °C and a loading frequency of 1.0 Hz for 1000 min following deformation by cold rolling to varying levels up to 27%. The elastic modulus increased at an exponentially decaying rate during these experiments and with a magnitude that increased with pre-strain. These observations are consistent with the hypothesis that deformation creates microstructural defects that contribute compliance when the stress state changes and that these defects are removed by annealing at this low temperature.

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Authors and Affiliations

  1. Metallurgy Division, Materials Science and Engineering Laboratory, National Institute of Standards and Technology, US Dept. of Commerce, Gaithersburg, MD, 20899, USA

    D.J. Pitchure & R.E. Ricker

Authors
  1. D.J. Pitchure
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  2. R.E. Ricker
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Correspondence to D.J. Pitchure.

Additional information

This article was presented at Materials Science & Technology 2006, Innovations in Metal Forming symposium held in Cincinnati, OH, October 15-19, 2006.

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Pitchure, D., Ricker, R. The Recovery of Elastic Properties at 35 °C in TRIP 700 Steel Following Deformation. J. of Materi Eng and Perform 16, 349–353 (2007). https://doi.org/10.1007/s11665-007-9061-z

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  • DOI: https://doi.org/10.1007/s11665-007-9061-z

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