Abstract
This work deals with investigations on twin formation in bcc pure iron during high strain rate impact experiments. The temperature and grain size effects on the twin formation are discussed with respect to experimental results. The study presents opportunities and limits in experimental twinning observation. In addition to experimental limitations, an introduction in molecular dynamics simulation as suitable tool in twinning investigation is given. For that reason, molecular dynamics simulation is used to visualize twin formation and describe the nucleation mechanism. The results show a very good correlation to the experimental observations.
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Acknowledgements
The authors thank the MDZWP e.V. for financial support of this study. The EBSD measurements were carried out by FEI SCIOS, funded by DFG large equipment funding (article 91b GG).
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Ecke, M., Michael, O., Wilke, M., Hütter, S., Krüger, M., Halle, T. (2020). Deformation Twinning in bcc Iron - Experimental Investigation of Twin Formation Assisted by Molecular Dynamics Simulation. In: Altenbach, H., Brünig, M., Kowalewski, Z. (eds) Plasticity, Damage and Fracture in Advanced Materials . Advanced Structured Materials, vol 121. Springer, Cham. https://doi.org/10.1007/978-3-030-34851-9_4
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