METALLURGY OF ZIRCALOY-2 PART II. THE EFFECTS OF FABRICATION VARIABLES ON THE PREFERRED ORIENTATION AND ANISOTROPY OF STRAIN BEHAVIOR

摘要

The preferred orientation and anisotropy of strain behavior of Zircaloy-2 were studied as functions of fabrication variables. An inverse-pole-figure technique was used for the preferred orientation determinations. Evaluationnof the effects of the fabrication variables on the anisotropy of strain be havior was accomplished by a contractile strain-axial strain analysis. An analysis of strain behavior in the normal direction' was developed on the basis of theory of plastic flow of anisotropic metals. It was also found that a simple intuitively derivable relationship existed between the strain-strain analysis and the preferred orientation data. Correlations of the strain data with true stress-true strain diagrams and mechanical properties were also attempted.