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Metals 2019, 9(2), 195; https://doi.org/10.3390/met9020195

Laminated TRIP/TWIP Steel Composites Produced by Roll Bonding

1
Institut für Werkstofftechnik, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany
2
Institut für Metallformung, Technische Universität Bergakademie Freiberg, 09599 Freiberg, Germany
*
Author to whom correspondence should be addressed.
Received: 11 December 2018 / Revised: 31 January 2019 / Accepted: 4 February 2019 / Published: 7 February 2019
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Abstract

In order to investigate the roll bonding of high-alloy transformation induced plasticity (TRIP) and twinning induced plasticity (TWIP) steel, roll-bonded sheets of the TRIP and TWIP steel were manufactured starting from hot rolling, followed by brushing and cold rolling. Both, the microstructure and mechanical properties of the roll-bonded sheets were characterized by metallographic investigations, and tensile and T-peel tests. Preliminary results, such as an occurrence of an adhesive bonding between two TWIP steel sheets and between TRIP and TWIP steel sheet after a thickness reduction of approximately 50% were obtained. Moreover, the formation of deformation-induced martensite leads to outstanding mechanical properties of the roll-bonded composite sheet. An ultra-fine grained microstructure was observed in the bonding zone after only one roll-bonding process. The obtained promising results demonstrate the possibility of the development of an accumulative roll-bonding process for TRIP/TWIP steel composites. View Full-Text
Keywords: roll bonding; TRIP steel; TWIP steel; high-alloy steel; laminate; composite roll bonding; TRIP steel; TWIP steel; high-alloy steel; laminate; composite
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Qiu, Y.; Kaden, N.; Schmidtchen, M.; Prahl, U.; Biermann, H.; Weidner, A. Laminated TRIP/TWIP Steel Composites Produced by Roll Bonding. Metals 2019, 9, 195.

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