X-ray measurement of residual stresses and texture development during a rolling sequence of zirconium alloy cladding tubes: Influence of plastic anisotropy on the mechanical behaviour

Autor: Gloaguen, David, FAJOUI, Jamal, Girard, Emmanuel, Guillén, Ronald
Přispěvatelé: Institut de Recherche en Génie Civil et Mécanique (GeM), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Journal of Applied Crystallography
Journal of Applied Crystallography, International Union of Crystallography, 2010, ⟨10.1107/S0021889810019989⟩
ISSN: 0021-8898
1600-5767
DOI: 10.1107/S0021889810019989⟩
Popis: International audience; Texture and residual stress analysis using X-ray diffraction have been carried out on zirconium alloy cladding tubes after cold pilgering, an industrial mechanical process. The final rolling pass has been completely characterized by X-ray diffraction. An interpretation of the effect of intergranular stresses on the development of analysed stress has been made using a modified elastoplastic self-consistent model in order to account for the effect of the high intrinsic plastic anisotropy of hexagonal close-packed crystals. The contribution and magnitude of the first- and second-order residual stresses were correctly evaluated using information from the model. The main features of the rolling sequence were qualitatively reproduced by the simulations, considering prismatic slip as the main active deformation mode in this alloy under large strain.
Databáze: OpenAIRE
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