Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-mechanical Processing of a Press Hardening Steel

A. Reitz, O. Grydin, M. Schaper, Metallurgical and Materials Transactions A 53 (2022) 3125–3142.

Journal Article | Published | English
Abstract
<jats:title>Abstract</jats:title><jats:p>With an innovative optical characterization method, using high-temperature digital image correlation in combination with thermal imaging, the local change in strain and change in temperature could be determined during thermo-mechanical treatment of flat steel specimens. With data obtained by this optical method, the transformation kinetics for every area of interest along the whole measuring length of a flat specimen could be analyzed by the generation of dilatation curves. The benefit of this innovative optical characterization method compared to a dilatometer test is that the experimental effort for the design of a tailored component could be strongly reduced to the investigation of only a few tailored thermo-mechanical processed specimens. Due to the implementation of a strain and/or temperature gradient within the flat specimen, less metallographic samples are prepared for hardness analysis and analysis of the microstructural composition by scanning electron microscopy to investigate the influence of different process parameters. Compared to performed dilatometer tests in this study, the optical method obtained comparable results for the transformation start and end temperatures. For the final design of a part with tailored properties, the optical method is suitable for a time-efficient material characterization.</jats:p> <jats:p><jats:bold>Graphical Abstract</jats:bold></jats:p>
Publishing Year
Journal Title
Metallurgical and Materials Transactions A
Volume
53
Issue
8
Page
3125-3142
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Cite this

Reitz A, Grydin O, Schaper M. Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-mechanical Processing of a Press Hardening Steel. Metallurgical and Materials Transactions A. 2022;53(8):3125-3142. doi:10.1007/s11661-022-06732-z
Reitz, A., Grydin, O., & Schaper, M. (2022). Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-mechanical Processing of a Press Hardening Steel. Metallurgical and Materials Transactions A, 53(8), 3125–3142. https://doi.org/10.1007/s11661-022-06732-z
@article{Reitz_Grydin_Schaper_2022, title={Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-mechanical Processing of a Press Hardening Steel}, volume={53}, DOI={10.1007/s11661-022-06732-z}, number={8}, journal={Metallurgical and Materials Transactions A}, publisher={Springer Science and Business Media LLC}, author={Reitz, Alexander and Grydin, Olexandr and Schaper, Mirko}, year={2022}, pages={3125–3142} }
Reitz, Alexander, Olexandr Grydin, and Mirko Schaper. “Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-Mechanical Processing of a Press Hardening Steel.” Metallurgical and Materials Transactions A 53, no. 8 (2022): 3125–42. https://doi.org/10.1007/s11661-022-06732-z.
A. Reitz, O. Grydin, and M. Schaper, “Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-mechanical Processing of a Press Hardening Steel,” Metallurgical and Materials Transactions A, vol. 53, no. 8, pp. 3125–3142, 2022, doi: 10.1007/s11661-022-06732-z.
Reitz, Alexander, et al. “Optical Detection of Phase Transformations in Steels: An Innovative Method for Time-Efficient Material Characterization During Tailored Thermo-Mechanical Processing of a Press Hardening Steel.” Metallurgical and Materials Transactions A, vol. 53, no. 8, Springer Science and Business Media LLC, 2022, pp. 3125–42, doi:10.1007/s11661-022-06732-z.
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