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Modeling texture evolution during ECAP of copper single crystal by crystal plasticity FEM

Journal Article


Abstract


  • In this study a crystal plasticity finite element model (CPFEM) has been developed to investigate texture

    evolution of copper single crystal during equal channel angular pressing (ECAP). It has been found that

    friction condition between the billet and the die wall has an obvious influence on the inhomogeneous

    texture of an ECAPed copper single crystal. Comparing to the experimental observation, the coefficient

    of friction of u = 0.05 exhibits a better texture prediction than u = 0.1. The crystallographic orientation

    rotates in three dimensions during ECAP and the dominant rotation direction is around the Z-axis. After

    ECAP the copper single crystal has been split into matrix bands which are connected by transition bands

    through the billet thickness. The Z-axis rotation angle remains similar in each matrix band and varies

    significantly in the transition bands. The corresponding Z-axis rotation angles are approximately 60◦, 0◦

    and 90◦, respectively, in three matrix bands from the top surface to the bottom surface of the billet.

Publication Date


  • 2012

Citation


  • Deng, G., Lu, C., Su, L., Liu, X. & Tieu, A. K. (2012). Modeling texture evolution during ECAP of copper single crystal by crystal plasticity FEM. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 534 (February 1), 68-74.

Scopus Eid


  • 2-s2.0-84856519516

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5320

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 68

End Page


  • 74

Volume


  • 534

Issue


  • February 1

Place Of Publication


  • Switzerland

Abstract


  • In this study a crystal plasticity finite element model (CPFEM) has been developed to investigate texture

    evolution of copper single crystal during equal channel angular pressing (ECAP). It has been found that

    friction condition between the billet and the die wall has an obvious influence on the inhomogeneous

    texture of an ECAPed copper single crystal. Comparing to the experimental observation, the coefficient

    of friction of u = 0.05 exhibits a better texture prediction than u = 0.1. The crystallographic orientation

    rotates in three dimensions during ECAP and the dominant rotation direction is around the Z-axis. After

    ECAP the copper single crystal has been split into matrix bands which are connected by transition bands

    through the billet thickness. The Z-axis rotation angle remains similar in each matrix band and varies

    significantly in the transition bands. The corresponding Z-axis rotation angles are approximately 60◦, 0◦

    and 90◦, respectively, in three matrix bands from the top surface to the bottom surface of the billet.

Publication Date


  • 2012

Citation


  • Deng, G., Lu, C., Su, L., Liu, X. & Tieu, A. K. (2012). Modeling texture evolution during ECAP of copper single crystal by crystal plasticity FEM. Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing, 534 (February 1), 68-74.

Scopus Eid


  • 2-s2.0-84856519516

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/5320

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 68

End Page


  • 74

Volume


  • 534

Issue


  • February 1

Place Of Publication


  • Switzerland