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Coupled FEM and Alamel-type polycrystal plasticity modelling applied to extrusion of aluminium alloys

Sammendrag

The evolution of deformation texture during an axisymmetric extrusion of an Al-Mg-Si aluminium alloy is simulated by coupled finite element method (FEM) and polycrystal plasticity modelling. The FEM-simulations provide spatial and temporal history of strain, strain-rate and temperature, i.e. the deformation history, along selected particle paths. The deformation history is subsequently transferred to polycrystal plasticity models for the simulation of the deformation texture evolution. In particular, Alamel-type models which are advanced Taylor-type polycrystal plasticity models have been employed. The predicted textures are compared to experimental results and to full-constraint (FC) Taylor texture predictions. It is shown that the Alamel-type models perform better than the FC-Taylor model and compare well with the experimental results.

Kategori

Vitenskapelig artikkel

Språk

Engelsk

Forfatter(e)

  • Kai Zhang
  • Knut Marthinsen
  • Bjørn Holmedal
  • Trond Aukrust
  • A Segatori

Institusjon(er)

  • Norges teknisk-naturvitenskapelige universitet
  • SINTEF Industri / Metallproduksjon og prosessering
  • Sverige

År

2015

Publisert i

Materials Today: Proceedings

ISSN

2214-7853

Forlag

Elsevier

Årgang

2

Hefte nr.

10

Side(r)

4898 - 4903

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