Texture and crystallite microstrain development during tensile deformationof copper - simulation and comparison to experimental results

Textures formed by tensile deformation at ambient temperatures and texture induced crystallite microstrains of pure copper were simulated using the fu ll plastic Taylor-Bishop-Hill theory and an elastic unloading process descr ibed by the linear elastic Voigt model. The results of the simulations are compared to inverse pole figures experimentally determined by X-ray diffrac tion and epsilon phi psi vs. sin(2)psi curves experimentally determined usi ng high energy synchrotron radiation. It is shown that the texture evolutio n has a strong influence on the crystallite microstrains and produces non-l inear strain curves. The microstrain distribution depends on the deformatio n mode and the lattice plane.