Abstract. The process of superplasticity has a long history dating back to the early experiments Pearson conducted in U.K. 1934. Since that time, become increasing importance because recognition superplastic forming provides simple procedure for processing complex and curved parts use wide range industrial applications. fundamental requirement flow is small grain size typically smaller than ~10...

The aim of the present review is to summarize recent achievements in development ultrafine-grained austenitic/ferritic stainless steels processed by large strain deformation. Various aspects microstructure evolution and its effect on properties are considered. paper starts from an overview various methods deformation that successfully used for producing metallic materials. Then, structural mech...

Accumulative fold-forging (AFF) as a newly developed severe plastic deformation (SPD) process based on the repetitive steps is implemented for production of layered UFG (~200 nm) AA8006 alloy and AA8006-B4C nanocomposite (~35 nm, 10 vol%) materials from initial foil. The remarkably refined grains nanoparticles can control metallic materials' mechanical properties, including strength, strain rat...

The effect of carbon additions on the structure and mechanical properties high-entropy alloys Co25−xCr25Fe25Ni25Cx (x = 0, 1, 3, at. %) in two structural states, as-cast coarse-grained (CG) samples nanocrystalline (NC) obtained by severe plastic deformation (SPD), was studied. SPD performed high-pressure torsion at room temperature. were investigated microindentation temperature range T 77−300 ...

the current study conducted a finite element (fe) and experimental investigation on tubular channel angular pressing as a noble severe plastic deformation technique for producing ultrafine grained and nanostructure tubular components. to examine the effects of the tcap process on the strain distribution and deformation behavior, fe simulations were employed. the fe results demonstrated that equ...