Effects of Picture Frame Technique (PFT) on the corrosion behavior of 6061 aluminum alloy

Milagre, Mariana Xavier; Donatus, Uyime; Mogili, Vishnu; Machado, Caruline S.C.; Araujo, João Victor S.; Klumpp, Rafael Emil; Fernandes, S.M.C.; Souza, J.A.B.; Costa, Isolda

doi:10.1016/j.jnucmat.2020.152320

Cited by 10 publications

(3 citation statements)

References 48 publications

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“…a T6 temper = peak age, b O temper = annealing, c R3 = 3 passes of hot rolling and d R9H60 = 9 passes of hot rolling and heating for 60 min Fig. 4 Hardness measurements obtained for the 6061 alloy submitted to different thermomechanical processes [13,38], influencing the level of residual stress as observed in this work. Finally, the Type III is associated with stresses as a consequence of coherency at interfaces and dislocation stress fields.…”

Section: Resultsmentioning

confidence: 68%

“…Thermomechanical processes are responsible for modifications in microstructure features of the Al alloys. According to previous work [13], heating and rolling processes alter the microstrucure of the 6061 alloy and, consequently, its corrosion resistance and strength. Despite the efforts to control manufacturing parameters to guarantee an optimal microstructure, all materials present some level of residual stress.…”

Section: Introductionmentioning

confidence: 91%

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A correlation between microstructure and residual stress in the 6061 Al–Mg–Si alloy with different thermomechanical process

et al. 2020

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Depending on the nature of the loading during service, the level and nature of residual stress can contribute to the lower service-life of a component. In this study the internal level of the residual stress of a 6061 Al-Mg-Si alloy with different thermomechanical processes was evaluated by residual stress neutron diffraction (RSND). Commercial tempers such as T6 (peak aged) and O (annealed) were compared with the 6061 alloy after different steps of a thermomechanical processing used for the manufacturing of nuclear fuel plates, R3 and R9H60. The results showed that the lowest level of residual stress was found for the peak age, T6 condition. This was associated with the highest microhardness value (highest density of "β″ phase) and lowest grain size. The O temper was the only condition which showed compressive residual stress and the most coarsened precipitates. The nuclear thermomechanical processes, R3 and R9H60, resulted in increased level residual stress related to the T6 and showed a tensile nature in relation to its parent material (6061-O). Moreover, the RSND technique allows observing that the texture is also higher for the samples processed by the nuclear thermomechanical process due the hot rolling stage.

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Section: Resultsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 91%

A correlation between microstructure and residual stress in the 6061 Al–Mg–Si alloy with different thermomechanical process

et al. 2020

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“…This process known as picture-frame (Fig. 1a) is worldwide considered as the industrial reference [6]. However some intrinsic limitations can be listed [7]: (i) dogboning which corresponds to an increase of the thickness of the meat at the edge of the plate, (ii) fish tails induced by differences in mechanical behaviour between the cladding and the meat, (iii) porosities caused by particles fragmentation during rolling which cannot be filled by aluminium deformation especially during cold rolling, (iv) sharp particles penetrating the cladding.…”

Section: Highlightsmentioning

confidence: 99%

Short communication: Spark plasma sintering as an innovative process for nuclear fuel plate manufacturing

Havette

Iltis

Palancher

et al. 2021

Journal of Nuclear Materials

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In this paper, we propose an alternative process based on spark plasma sintering for the manufacture of nuclear fuel plates for research reactors. This process presents significant flexibility to control manufacturing parameters such as fuel meat geometry and porosity according to the designer specifications. Furthermore, it allows to increase uranium loading up to 7.3 g U cm -3 , exceeding the current requirements for high performance MTRs. With this process neither dogbone, fishtail nor sharp particles penetrating the cladding are observed. The potentialities of this approach are illustrated with the manufacturing of a high loaded (5.6 g U cm -3 ) U 3 Si 2 /Al mini-plate.

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Corrosion Behavior of the 6061 Al–Mg–Si Alloy in Different Soils Extracts

Milagre

Araujo

Machado

et al. 2022

Metallogr. Microstruct. Anal.

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Effects of Picture Frame Technique (PFT) on the corrosion behavior of 6061 aluminum alloy

Cited by 10 publications

References 48 publications

A correlation between microstructure and residual stress in the 6061 Al–Mg–Si alloy with different thermomechanical process

A correlation between microstructure and residual stress in the 6061 Al–Mg–Si alloy with different thermomechanical process

Short communication: Spark plasma sintering as an innovative process for nuclear fuel plate manufacturing

Corrosion Behavior of the 6061 Al–Mg–Si Alloy in Different Soils Extracts

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