Texture after ECAP of a cube-oriented Ni single crystal

The texture of a cube-oriented Ni single crystal after one-pass equal channel angular pressing (ECAP) was measured globally and locally by neutron and synchrotron radiation, respectively. The texture is characterized by a TD rotated cube, a split C component and a partial B fiber. These components a...

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Bibliographic Details
Published in:Acta materialia 2008-08, Vol.56 (14), p.3439-3449
Main Authors: Skrotzki, W., Tóth, L.S., Klöden, B., Brokmeier, H.-G., Arruffat-Massion, R.
Format: Article
Language:English
Subjects:
Applied sciences
Billets
ECAP
Equal channel angular pressing
Exact sciences and technology
Heterogeneity
Metals. Metallurgy
Nickel
Single crystal
Single crystals
Surface layer
Synchrotron radiation
Texture
Walls
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Summary:The texture of a cube-oriented Ni single crystal after one-pass equal channel angular pressing (ECAP) was measured globally and locally by neutron and synchrotron radiation, respectively. The texture is characterized by a TD rotated cube, a split C component and a partial B fiber. These components are heterogeneously distributed in the ECAP billet. Due to friction at the die walls, the rotated cube is mainly observed in the top and bottom parts of the billet, the split C dominates in the central part. The experimental results with respect to component intensity, position from ideal orientation and asymmetry of component splitting are compared with texture simulations taking into account grain fragmentation. Conclusions concerning polycrystal deformation are drawn.
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2008.03.017