Dependence of the Grain Size in the Microstructure of Copper on the Rate of Deformation by “Helical Rolling–Pressing”

The article investigates the dependence of grain size in the microstructure of copper on the rate of deformation using a novel 'helical rolling-pressing' process. This method combines helical rolling with equal-channel angular pressing (ECAP) to achieve significant grain refinement throughout the material. The study reveals that the deformation rate plays a crucial role in determining the final microstructure and mechanical properties of the copper. By simulating and experimentally validating the process, the authors demonstrate that higher deformation rates lead to more uniform and finer grain structures. The findings have significant implications for the production of high-quality materials with enhanced properties, making the article a valuable resource for specialists in materials science and metallurgy.