Prediction of transformation texture under complex rolling condition

Abstract

This paper deals with the prediction of transformation textures under different complex rolling conditions. With the help of mathematical models, it has been shown that the texture prediction can be done when martensite forms from a high Ni austenitic steel, which has undergone heavy deformation above M d . It has also been shown that the texture prediction can be done quite accurately when the steel is deformed under M d and transformation takes place simultaneously with deformation. This work also clearly proves that the Patel and Cohen’s theory can be utilised to predict the variant selection in complex rolling conditions, if it is used correctly along with the phenomenological theory of martensite crystallography (PTMC). It is quite clear from the set of results that no simplification, in terms of martensite transformation theory, is required to obtain the correct texture prediction as previously done by some researchers in which only the Bain variants are considered to be operative for martensite transformation.