Severe plastic deformation of tubular materials – Process methodology and its influence on mechanical properties – A review

Abstract

Severe Plastic Deformation (SPD) processes bring about phenomenal grain refinement, by imparting plastic strain onto the materials being processed, owing to which significant improvements in mechanical properties are brought about. While plenty of processes exist for processing bulk materials, the direct utilization of such materials is very limited. Tubular materials buy enlarge are some of the most widely used form of industrial products and this work reviews the SPD techniques that are available for processing tubular materials. Considering the extent to which tubular materials are used, the lack of wide range of SPD techniques to process them is very unfortunate. A systematic review of process methodology of these SPD techniques which process tubular materials and the impact of such processing on mechanical properties of the materials is made. The review is aimed at providing the readers with a design thinking that would enable the readers to adopt the SPD techniques that they are familiar with into something that would process tubular materials. SPD processed tubes, with strengthened walls, of course could have a reduced thickness amounting to materials savings. Such savings would not only result in cost savings but also would lead to sustainability.