Severe plastic deformation is a technical method to produce functional material with special properties such as high strength and specific physical properties. Selection of an efficient severe plastic deformation for grain refinement is a challenging field of study and using a modeling technique to predict the refinement efficiency has gained a lot of attentions. A comparative study was carried...

in the present paper, the deformation zone of the ecae (equal channel angular extrusion) process was investigated using the upper bound theorem. for this purpose, the shape of the streamlines in the deformation zone was assumed to be cubic bezier curves. then, the force required for the ecae process was optimized with regard to the parameters defining the shape of streamlines by the upper bound...

La exóstosis del conducto auditivo externo (ECAE), también conocida como oído de surfista, es una alteración tejido óseo externo, principalmente causada debido a la sobrexposición al frío. Considerando que los practicantes deportes acuáticos el surf y bodyboard las costas pacífico sur se exponen aguas con temperaturas entre 12-16 °C, busca determinar, en este estudio, prevalencia grado ECAE loc...

The microstructural evolution of interstitial-free (IF) steel subjected to Φ = 90° Equal Channel Angular Extrusion (ECAE) for up to 4 passes via routes A, BA, C and up to 8 passes via routes BC was studied using Electron Back-Scatter Diffraction (EBSD). Routes BC and BA recorded the smallest grain size and aspect ratios and the largest average misorientation and area fraction of high-angle grai...