Severe plastic deformation (SPD) methods are developed to produce highly strained materials while 7 experiencing no dimensional changes. Several parameters have to be considered to develop a SPD 8 process such as industrial applicability. In this study, the repetitive corrugation and straightening by 9 rolling (RCSR) method, is used. Process parameters, sample thickness, and rollers design and gap, are 10 optimized according to deformation mode simulated by Abaqus software. The results are verified using 11 DIC (digital image correlation) experiments, which are in good agreement with the simulations. 12 Analytical modeling is also used to estimate accumulated strain after one cycle and the results show a 13 similar trend. Microhardness tests show that deformation homogeneity and hardness are increased 14 after each step of RCSR. 15

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