A study of through-thickness texture gradients in rolled sheets

O. Engler, M. Y. Huh, C. N. Tomé

    Research output: Contribution to journalArticlepeer-review

    231 Citations (Scopus)

    Abstract

    A method to simulate shear effects and through-thickness texture gradients in rolled sheet materials is introduced. The strain history during a rolling pass is idealized by superimposing a sine-shaped evolution of the ε̇13 shear component to a plane-strain state. These generic strain histories are enforced in a visco-plastic self-consistent (VPSC) polycrystal deformation model to simulate texture evolution as a function of through-thickness position. The VPSC scheme is deemed superior to a full constraints (FC) or relaxed constraints (RC) approach, because it allows one to fully prescribe diagonal and shear-strain-rate components while still accounting for grain-shape effects. The idealized strain states are validated by comparison with deformation histories obtained through finite-element method (FEM) calculations. The through-thickness texture gradients are accounted for by introducing a relative variation of the sine-shaped ε̇13 shear with respect to the plane-strain component. The simulation results are validated, in turn, by comparison with typical examples of through-thickness texture gradients observed experimentally in rolled plates and in sheets of fee and bcc materials.

    Original languageEnglish
    Pages (from-to)2299-2315
    Number of pages17
    JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
    Volume31
    Issue number9
    DOIs
    Publication statusPublished - 2000

    Bibliographical note

    Funding Information:
    This work was supported by the United States Department of Energy. MYH is grateful to the Korean Research Foundation for financial support through a research fund (1998-017-E00098). The results of the commercial purity aluminum shown in Figure 2 have been provided by S. Benum and those of the IF steel (Figures 4 and 5) by B. Beckers. We are grateful to Professors A. Beaudoin and S.R. Kalidindi for valuable discussions. Professor J.J. Park helped with the FEM calculations.

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Mechanics of Materials
    • Metals and Alloys

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