Production of roll bonded metal composites is gaining more interest due to the possibility of combining different material properties for special needs application.
The combination of high alloy transformation induced plasticity (TRIP) steel and twinning induced plasticity (TWIP) steel resolves in a metal composite with outstanding strength and elongation characteristics.
The production of this compound was first investigated by Qui et al. [1] where the author faced difficulties in finding stable processing conditions.\\
To further understand the production process and to optimize the current processing conditions Qui et al. stated, that simulative tools should be used.
In the present paper the production process of TRIP / TWIP metal laminates was investigated using suitable numerical models.
The used model was first published by Zhang et al. [2] and was already extended by Schmidtchen et al. [3].
For the current research this model was also extended to take into account the elastic material behavior.
It is shown that through usage of the model the current processing conditions for TWIP/TWIP and TRIP/TWIP combinations could be optimized and a theoretical bond strength could be calculated.
Also the results of the extended model fit good with measurements from the actual production process.

[1] Yangxi Qiu et al. “Laminated TRIP/TWIP Steel Composites Produced by Roll Bonding”. In: Metals 9.2 (Feb. 2019), p. 195. doi: 10.3390/met9020195.
[2] W. Zhang and N. Bay. “A Numerical Model for Cold Welding of Metals”. In: Annals of the CIRP 45.1 (1996), pp. 215–220. doi: 10.1016/s0007-8506(07)63050-9.
[3] M. Schmidtchen and R. Kawalla. “Fast numerical simulation of symmetric flat rolling processes for inhomogeneous materials using a layer model - Part I: basic theory”. In: Steel Research International 87.8 (2016), pp. 1065–1081. doi: 10.1002/srin.201600047.