Comparison of different methods of Severe Plastic Deformation for grain refinement

The methods of severe plastic deformation are the procedures of grain refinement of bulk crystalline materials to ultrafine or up-to Nano crystalline structure followed by improvement in mechanical properties of different metals and alloys used for various automobile, aerospace and defence applications. In this research paper, discussion has been made about the comparison of different methods of severe plastic deformation for perfection in microstructure and subsequent changes in mechanical properties for industrial applications. The results achieved by Equal Channel Angular Pressing method are more useful for grain refinement by the reason of high imposed shear strain in the material. It has also been observed that using this method strength is also increased with ductility as desired in most of the cases. It can be concluded here that detailed study is still to be explored after processing the material after severe plastic deformation.