Texture and microstructure evolution of Fe-Ni alloy after accumulative roll bonding

The texture and microstructure evolution of a Fe-36%Ni alloy processed by accumulative roll-bonding (ARB) up to ten cycles was investigated using Electron BackScattered Diffraction (EBSD) and X-ray diffraction. EBSD analysis has shown that ARB processing leads to microstructural refinement with an average grain size and aspect ratio of 0.55 μm and 0.13 respectively after 10 cycles. The deformation structure evolved to the so-called elongated ultrafine grains parallel to the rolling direction. The grain boundary misorientation gradually increased. The texture after ARB processing was characterized by the typical C shear component near the surface and the Copper/Dillamore component at mid-thickness of the sheets.