The structural state of hydrostatically extruded non-ferrous metals

Abstract

It is well known that during cold plastic deformation of metals at high pressure, some important mechanical and electrical properties of the deformed material are modified as well as structural changes typical to nanomaterials take place. X-ray diffraction was used to investigate texture, internal stresses, grain size and dislocation density in Al 99,5 % and CuE, subjected to hydrostatic extrusion. Evidence of favourable influence of the hydrostatic pressure on the material properties is presented.