Influence of particle stimulated nucleation on the recrystallization textures in cold deformed Al-alloys. Part 2: Modeling of recrystallization textures
- Los Alamos National Lab., NM (United States). Center for Materials Science
As discussed in Part 1 of this study, the recrystallization textures of particle containing Al-alloys, in which recrystallization is controlled by PSN, are all very similar. They generally are rather weak which indicates they comprise a high fraction of randomly oriented grains, but they also depict a characteristic ND rotated cube-orientation with the approximately Miller-indices {l_brace}001{r_brace}<310> and, at deformations exceeding 90%, the P-orientation {l_brace}011{r_brace}<122>. It turned out that under certain circumstances the typical PSN-textures may depict intensities as high as f(g) > 10, which means that the general description of PSN recrystallization textures as being random is oversimplified. There have been a number of attempts to model PSN-recrystallization textures based on the assumption of a 40{degree} <111> growth selection out of a random distribution of nucleus orientations (e.g.). In that instance, the recrystallization texture can be simulated by a numerical rotation of the corresponding rolling texture by {+-}40{degree} about all possible <111>-axes. The main result of the microstructural and -textural investigations summarizes in the preceding paper is that the orientation distribution within the deformation zones is by no means random. Rather, distinct orientation correlations between the subgrains within the deformation zones and the surrounding matrix have been established. Hence, the presupposition for using a simple 40{degree} <111> rolling texture transformation to model PSN-recrystallization textures, namely (micro)growth selection out of an entirely random spectrum of nucleus orientations, is not valid. Rather, the model has to be modified so as to take the non-random distribution of subgrain orientations into account.
- OSTI ID:
- 556500
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 11 Vol. 37; ISSN 1359-6462; ISSN SCMAF7
- Country of Publication:
- United States
- Language:
- English
Similar Records
The evolution of the Goss texture in silicon steel
Evolution of recrystallization texture from aluminum sheet cold rolled under unlubricated condition