Measurement of the Young modulus anisotropy of a reactor pressure vessel cladding

Vandermeulen, W.; Scibetta, M.; Leenaers, A.; Schuurmans, J.; Gérard, R.

doi:10.1016/j.jnucmat.2007.03.213

Cited by 11 publications

(7 citation statements)

References 8 publications

(13 reference statements)

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“…Although the heat treatments, in comparison with the AW sample, lead to an almost imperturbable texture effect, they also have a high impact by dampening the Young's moduli anisotropy, particularly for HT540. This must be due to the dissolution of the delta (δ) phase during the heat treatment, as stated in the work performed by Vandermeulen et al [27] and Gill et al [28] and observed in the present samples [29]. The Young's moduli values observed in this study agree very well with those earlier measured for identical steels carried out with XRD [13,27].…”

Section: Neutron Diffractionsupporting

confidence: 91%

“…This must be due to the dissolution of the delta (δ) phase during the heat treatment, as stated in the work performed by Vandermeulen et al [27] and Gill et al [28] and observed in the present samples [29]. The Young's moduli values observed in this study agree very well with those earlier measured for identical steels carried out with XRD [13,27].…”

Section: Neutron Diffractionsupporting

confidence: 91%

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Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

et al. 2022

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The effect of the heat treatment on the residual stresses of welded cladded steel samples is analyzed in this study. The residual stresses across the plate’s square sections were determined using complementary methods; applying diffraction with neutron radiation and mechanically using the contour method. The analysis of the large coarse grain austenitic cladded layers, at the feasibility limits of diffraction methods, was only made possible by applying both methods. The samples are composed of steel plates, coated on one of the faces with stainless steel filler metals, this coating process, usually known as cladding, was carried out by submerged arc welding. After cladding, the samples were submitted to two different heat treatments with dissimilar parameters: one at a temperature of 620 °C maintained for 1 h and, the second at 540 °C, for ten hours. There was some difference in residual stresses measured by the two techniques along the surface of the coating in the as-welded state, although they are similar at the welding interface and in the heat-affected zone. The results also show that there is a residual stress relaxation for both heat-treated samples. The heat treatment carried out at a higher temperature showed sometimes more than 50% reduction in the initial residual stress values and has the advantage of being less time consuming, giving it an industrial advantage and making it more viable economically.

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Section: Neutron Diffractionsupporting

confidence: 91%

Section: Neutron Diffractionsupporting

confidence: 91%

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

et al. 2022

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“…Although the heat treatments slightly increase the texture effect compared to the AW sample, it smothers the Young's modulus anisotropy. The Young's modulus values range obtained in this study agree very well with those measured by previous studies on similar materials [7,8]. Texture results show that a fiber texture is developed after welding and the maximum intensity increases with depth.…”

Section: Local and Bulk Young's Modulussupporting

confidence: 90%

“…As a consequence a solidification texture and residual stresses are developed similar to the ones found in standard welds [3][4][5][6]. Previous studies have shown that such a texture could explain the anisotropy of Young's modulus of the cladding material [7,8]. In those studies ultrasonic techniques, cantilever bending tests and traditional X-ray diffraction measurements were used to determine the elastic modulus of the bulk materials.…”

Section: Introductionmentioning

confidence: 97%

Texture Characterization of Stainless Steel Cladded Layers of Process Vessels

Rebelo-Kornmeier

Gan

Marques

et al. 2016

MSF

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In this study local texture of process vessels made of carbon steel cladded by protective layers of stainless steel by submerged arc welding (SAW) were investigated by neutron diffraction using the diffractometer STRESSSPEC at FRM 2 (Garching, Germany). Different samples were prepared: as welded and as welded plus relevant industrial heat treatment. Local texture measurements with a gauge volume of 3 x 3 x 2 mm3 of the three cladding layers (at depths of 2 mm, 5 mm and 7.5 mm) for each sample were determined. Texture results indicated that there exists an annealed cube component in all the studied samples. Based on the measured pole figures at each depth and sample, the calculated orientation distribution functions data were used to calculate the Young's modulus with respect to the main welding directions. The calculated local and bulk anisotropic Young’s modulus in depth is presented and discussed.

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“…It is well known that E varies among different crystallographic directions in the fcc lattice. Vandermeulen et al [36] found values of 102, 196, and 285 GPa for E along the directions (100), (110), and (111), respectively, for Type 316 Cr-Ni-Mo austenitic stainless steels. The chemical composition of the present steels differs from that of Type 316 steels, but in steels, the chemical composition has only a slight effect on the Young's modulus, so those values are reasonable to adopt for the present steel, too.…”

Section: B Microstrain Anisotropy and The Microstructure Evolutionmentioning

confidence: 99%

Martensitic Transformation During Cold Rolling Deformation of an Austenitic Fe-26Mn-0.14C Alloy

Sahu

Hamada

Sahu³

et al. 2011

Metall Mater Trans A

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A high-Mn austenitic steel was deformed in cold rolling to study the martensitic transformation and microstructure using X-ray diffraction and electron backscatter diffraction. Despite heavy deformation of 70 pct reduction (1.2 true strain), a¢-martensite could not be induced in this alloy, but about 90 pct of the austenite transformed to e-martensite. However, a small fraction (~4 pct) of a¢-martensite could be observed when the same alloy was subjected to low strain compression tests in a Gleeble simulator. The stability of e-martensite was attributed to the increase in stacking fault energy of the steel, expected to be more than 20 mJ/m 2 because of the increase in temperature during the cold rolling deformation.

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Measurement of the Young modulus anisotropy of a reactor pressure vessel cladding

Cited by 11 publications

References 8 publications

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

Texture Characterization of Stainless Steel Cladded Layers of Process Vessels

Martensitic Transformation During Cold Rolling Deformation of an Austenitic Fe-26Mn-0.14C Alloy

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