Influence of hydrostatic extrusion process on the microstructure and texture of polycrystalline nickel

摘要: ABSTRACTThe evolution of the microstructure and texture polycrystalline nickel, from its initial state to that after a hydrostatic extrusion process total true strains 0.5, 1.18, 1.62 2.2, were examined. Investigation revealed grain size was reduced ∼32 µm ∼200 nm. The local transformation major boundary misorientation angles discussed based on electron backscattered diffraction results, while XRD used give qualitative quantitative description global texture. Microhardness measurements performed investigate changes in mechanical properties deformed material.