自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 20    No. 6    June 2013

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Effect of asymmetric rolling on mechanical characteristics, texture and misorientations in ferritic steel
Wroński Sebastian1, 2, Wierzbanowski Krzysztof1, Bacroix Brigitte2, Chauveau Thierry2, Wróbel Miroslaw3

1. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Kraków 30-059, Poland;2. LSPM-CNRS, Université Paris 13, Villetaneuse 93 430, France;3. AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Kraków 30-059, Poland

Abstract:The mechanical and microstructural properties as well as crystallographic textures of asymmetrically rolled low carbon steel were studied. The modelling of plastic deformation was carried out in two scales: in the macro-scale, using the finite elements method, and in the crystallographic scale, using the polycrystalline deformation model. The internal stress distribution in the rolling gap was calculated using the finite elements method and these stresses were then applied to the polycrystalline elasto-plastic deformation model. Selected mechanical properties, namely residual stress distribution, deformation work, applied force and torques, and bend amplitude, were calculated. The diffraction measurements, X-ray and electron backscatter diffraction, enabled the examination of texture heterogeneity and selected microstructure characteristics. The predicted textures agree well with those determined experimentally. The plastic anisotropy of cold rolled ferritic steel samples, connected with texture, was expressed by Lankford coefficient.

 

Key words: asymmetric rolling; crystallographic texture; residual stress; deformation model; finite elements method; diffraction

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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