Estimation of Lankford Coefficients of Austenitic and Ferritic Stainless Steels using Mean Grain Orientations from Micro-texture Measurements

A new method to calculate the plastic anisotropy r-values of austenitic and ferritic stainless steels has been developed. The mean orientation individual grains is obtained from SEM-EBSD data for are calculated by weighting all slip systems according their Schmid factors. Calculated measured in good agreement steels. However, steels, which highly anisotropic, requires introduction a factor threshold below inactive. present can be used estimate local differences showing variations texture responsible ridging.