Neutron diffraction versus EBSD analysis of the texture in Fe-36%Ni alloy after accumulative roll bonding

Abstract

The texture evolution of Fe-36%Ni(wt%) alloy processed by accumulative roll-bonding (ARB) up to six cycles was investigated using neutron diffraction. The texture sharpened after the second cycle, showed continuous strength up to six cycles, and was characterized by the typical copper-type texture together with a R-Cube{001}<110> component that appeared after two cycles of ARB processing. The texture obtained by neutron diffraction was compared with that measured by electron backscatter diffraction (EBSD). The neutron diffraction and EBSD texture intensities were substantially similarand exhibited almost the same trends for all texture components. The evolution of the Lankford coefficient <i>R</i>, average Lankford factor <img src='http://www.niscair.res.in/jinfo/rbar.gif' border=0>, planar anisotropy Δ<i>R</i>, and Young modulus values versus angle to rolling direction calculated from experimental textures of ARBed samples showed that ARB processing increased the plastic anisotropy and Young modulus of the sheet.