Texture and residual-stresses analysis in Zircaloy-4 cylindrical samples

Guillén, Ronald; Cossú, Caio Marcello Felbinger Azevedo; François, Manuel; Girard, Emmanuel

doi:10.1016/s0022-3115(98)00020-8

Cited by 13 publications

(10 citation statements)

References 4 publications

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“…For comparison, in cold rolled zircaloy-4 cladding tubes [19,20], the stresses obtained by XRD depend strongly on the analysed plane family (þ168 MPa for the f10 1 14g plane and À193 MPa for the f10 1 11g plane). This significant difference is not observed for the two studied planes in the case of titanium.…”

Section: X-ray Diffraction Resultsmentioning

confidence: 99%

Interpretation of X-Ray Stress Measurement and Evaluation of Internal Residual Stresses in Rolled ?-Ti40 Using Self-Consistent Models

Gloaguen¹,

François²,

Guillén³

et al. 2002

phys. stat. sol. (a)

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Section: X-ray Diffraction Resultsmentioning

confidence: 99%

Interpretation of X-Ray Stress Measurement and Evaluation of Internal Residual Stresses in Rolled ?-Ti40 Using Self-Consistent Models

Gloaguen¹,

François²,

Guillén³

et al. 2002

phys. stat. sol. (a)

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“…The von Mises equivalent stress distributions were calculated using equation (4) and are shown in Fig. 9.…”

Section: Residual Stress Resultsmentioning

confidence: 99%

“…Various experimental techniques such as X-ray diffraction [4], neutron diffraction [5] and Sachs' boring-out [6][7][8] have been utilized for measuring residual stresses in Zirconium-based tubes or plates. Since zirconium alloys show a certain amount of anisotropy in their thermal or mechanical properties, most of the previous work has been focused in determining the degree of anisotropy and its possible causes.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Residual Stresses in Nuclear-grade Zircaloy-4(R) Tubes—Effect of Heat Treatment

Rasty

Baydoğan

et al. 2007

Exp Mech

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Nuclear-grade Zircaloy-4(R) tubes are produced by a unique manufacturing process known as pilgering, which leaves the material in a work-hardened state containing a pattern of residual stresses. Moreover, such tubes exhibit elastic anisotropy as a result of the pilgering process. Therefore, standard equations originally proposed by Sachs (Z Met Kd, 19: 352-357, 1927; Sachs, Espey, Iron Age, 148: 63-71, 1941). for isotropic materials do not apply in this situation. Voyiadjis et al. (Exp Mech, 25: 145-147, 1985) proposed a set of equations for treating elastically anisotropic materials, but we have determined that there are discrepancies in their equations. In this paper, we present the derivation for a set of new equations for treating elastically anisotropic materials, and the application of these equations to residual stress measurements in Zr-4(R) tubes. To this end, through thickness distribution of residual stress components in as-received and heat treated (500°C) Zr-4(R) tubes was measured employing the Sachs' boringout technique in conjunction with electrochemical machining as the means of material removal, and our new equations. For both as-received and the heat treated materials, the axial and tangential residual stresses were significantly higher than the radial and shear residual stresses. The largest residual stress was the tangential stress component in the as-received material, showing a tensile value at the outer surface and a compressive value at the inner surface. At high values of von Mises equivalent stress, the principal directions of residual stress coincided with the principal axes of the tube for the as-received material, as well as for the material heat treated at 500°C.

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“…X -ray measurements show the existence of plastic anisotropy. For comparison, in cold rolled zircaloy-4 cladding tubes [12], the stresses obtained by XRD depend strongly on the analysed plane family (+168 MPa for the �OI4} plane and -193 MP a for the {W22} plane). This significant difference is also observed in the case of zirconium.…”

Section: Iv2 X-ray Diffraction Resultsmentioning

confidence: 99%

Elastoplastic Self-Consistent Modelisation of Internal Stresses in Rolled Zr702α

Gloaguen

François

Guillén

et al. 2002

MSF

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Internal stresses due to anisotropic thermal and plastic properties were investigated in a rolled zirconium-a. The thermal stresses induced by a cooling process were predicted using a self consistent model and compared with experimental results obtained by X-ray diffraction. The study of the elastoplastic response after uniaxial loading was performed along the rolling and the transverse direction of the sheet. Using an elastoplastic self-consistent model, the predicted results were compared with X-ray diffraction and mechanical tests. Theoretical and experimental results agree in their tendencies. The confrontation between Eqnv vs. sin 2 'J f and simulations confirms that prismatic slip is the main active deformation mode.

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Texture and residual-stresses analysis in Zircaloy-4 cylindrical samples

Cited by 13 publications

References 4 publications

Interpretation of X-Ray Stress Measurement and Evaluation of Internal Residual Stresses in Rolled ?-Ti40 Using Self-Consistent Models

Interpretation of X-Ray Stress Measurement and Evaluation of Internal Residual Stresses in Rolled ?-Ti40 Using Self-Consistent Models

Measurement of Residual Stresses in Nuclear-grade Zircaloy-4(R) Tubes—Effect of Heat Treatment

Elastoplastic Self-Consistent Modelisation of Internal Stresses in Rolled Zr702α

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