Model Calculations of Elastic Moduli in Highly Deformed Composites

Abstract

Young's modulus of heavily deformed two-phase composites shows an unusually high increase after plastic deformation. It is assumed that this is due to two reasons, i.e. texture changes and changes of the moduli of the constitutive phases on the basis of non-linear elasticity theory and internal stresses of opposite sign in the phases. Expressions of the two contributions are given on the basis of simple model assumptions. It is estimated that the changes of shape and arrangement of the phases and shape and arrangement of the crystallites in the phases are only of minor importance.

Ultrasonic texture characterization of aluminum, zirconium and titanium alloys

“…X-ray and neutron diffraction provide the raw pole figure data for the determination of ODCs. The advantages of neutron diffraction for measurements of the volumetric average texture in a bulk specimen, and various neutron techniques have been described previously (Bunge, 1989). X-ray diffraction is.…”