A phase field method for modeling anodic dissolution induced stress corrosion crack propagation

Nguyen, T-T.; Bolivar, José; Shi, Yunfeng; Réthoré, Julien; King, Andrew; Frégonèse, Marion; Adrien, Jérôme; Buffière, Jean‐Yves; Baietto, Marie-Christine

doi:10.1016/j.corsci.2017.12.027

Cited by 69 publications

(43 citation statements)

References 58 publications

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“…As mentioned in the work [23], the phase transformation occurs when the ions concentration achieves the saturation value, denoted and for solid metal and electrolyte respectively, in the normalized framework.…”

Section: Fundamentals Of the Proposed Methodsmentioning

confidence: 99%

“…This work focuses on the study of polycrystalline effects to the anodic dissolution induced stress corrosion crack growth. To this aim, we extend the formulation proposed in [23] to the case of polycristalline materials. The new energy formulation is rewritten as follows:…”

Section: Phase Field Modelmentioning

confidence: 99%

“…8, ( , ∇ ) describes the surface energy or the amount of energy released upon the creation of new fracture surfaces. It is chosen following the work [23]:…”

Section: Phase Field Modelmentioning

confidence: 99%

“…is the diffusion mobility, which can be evaluated based on an analogy between the Cahn-Hilliard equation and the Fick's second law (see [23,22], for more details), being written as:…”

Section: Variational Principle For Electrochemical Problemmentioning

confidence: 99%

“…In this work, the phase field method augmented by a smeared description of interfaces is used to develop a fully coupled multiphysics model of stress corrosion assisted damage growth [19,20,21]. Starting from the ideas in [22,23], we extend them to the case of polycrystalline materials, where the anisotropic effects for both elastic energy and fracture surface energy are taken into account. The behavior of grain boundaries is described by the smeared cohesive model following the work [24,25].…”

Section: Introductionmentioning

confidence: 99%

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Modeling of inter- and transgranular stress corrosion crack propagation in polycrystalline material by using phase field method

Nguyen

Réthoré

Baietto

et al. 2017

Journal of the Mechanical Behavior of Materials

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A coupled multiphysics phase field framework is proposed to model anodic dissolution induced by stress corrosion fracture growth at microstructual level. The effects of electrochemical-mechanical processes (including crystal anisotropy) are all taken into account. This new model is based upon: (i) an anisotropic phase transformation model based on a variational formulation to describe material dissolution along preferential directions; (ii) an efficient description of grain boundaries as a smeared cohesive zone; (iii) an explicit approximation to model the different electrochemical behaviors between grain boundary and grain interior. Both intergranular and transgranular stress corrosion cracking is simulated in an efficient manner. The abilities of the proposed model are illustrated through several numerical examples involving a full prediction of complex crack network growth induced by stress corrosion cracking within 2D polycrystaline models.

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Section: Fundamentals Of the Proposed Methodsmentioning

confidence: 99%

Section: Phase Field Modelmentioning

confidence: 99%

“…8, ( , ∇ ) describes the surface energy or the amount of energy released upon the creation of new fracture surfaces. It is chosen following the work [23]:…”

Section: Phase Field Modelmentioning

confidence: 99%

“…is the diffusion mobility, which can be evaluated based on an analogy between the Cahn-Hilliard equation and the Fick's second law (see [23,22], for more details), being written as:…”

Section: Variational Principle For Electrochemical Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Modeling of inter- and transgranular stress corrosion crack propagation in polycrystalline material by using phase field method

Nguyen

Réthoré

Baietto

et al. 2017

Journal of the Mechanical Behavior of Materials

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A New Multi‐Phase Field Model for the Electrochemical Corrosion of Aluminum Alloys

Chen

Tang

et al. 2022

Advcd Theory and Sims

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A profound understanding on the corrosion kinetics and mechanisms is crucial to help improve the corrosion resistance of alloys. Corrosion of aluminum alloys is very complex due to the interplay among a bunch of electrochemical reactions, and the influences of diversified precipitates. In this work, a new multi-phase field method is constructed to quantitatively analyze the corrosion kinetics of aluminum alloys, and a semi-implicit algorithm is developed to solve the numerical divergence resulted by the terms of reactions in concentration equations. Then, this new method is successfully used to simulate the pitting processes in the cases of a uniform matrix, a polycrystalline matrix, and a non-uniform matrix with secondary phase for aluminum alloys. More generally, the framework of this multi-phase field model can potentially be used to study the corrosion of other alloy systems, and microstructure evolution of a broad range of electrochemistry processes.

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Passivation behaviors of 6082 aluminium alloy under stress corrosion process

Zhou

Yang

et al. 2020

Materials & Corrosion

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We systematically studied the passivation process of 6082 aluminium alloy under the bending stress situation by combining electrochemical measurement techniques with three‐point bending stress fixture designed by our lab, and then examined the microstructures of corroded specimens to analyze electrochemical corrosion mechanism in 1.5% NaCl solution. The results show that secondary Mg2Si phase acts as the anodic electrode, leading to the self‐corrosion of Mg2Si phase. As a result, the spots of self‐corroded Mg2Si phase within grains act as initial pitting corrosion site, combined with tiny, massive precipitated Mg2Si particles at the grain boundaries and bending stress, leading to the failure of surface of the 6082 aluminium alloy. The corrosion current density increases from 3.422 × 10−7 to 13.77 × 10−7 A/cm2 when bending stress level was increased from 0% up to 100% of yield stress. Passive film formation process occurred between polarization potential area of −1.05 and −0.65 V. Sectional microstructural investigations show that the corrosion starts penetrating vertically into the material before it develops corrosion paths extending parallel to the surface, leading to massive stress‐induced corrosion cracks. The maximum corrosion depth increases from ∼24 μm on specimen without any stress applied to 85 μm when bending stress of 100% yield strength is applied.

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A phase field method for modeling anodic dissolution induced stress corrosion crack propagation

Cited by 69 publications

References 58 publications

Modeling of inter- and transgranular stress corrosion crack propagation in polycrystalline material by using phase field method

Modeling of inter- and transgranular stress corrosion crack propagation in polycrystalline material by using phase field method

A New Multi‐Phase Field Model for the Electrochemical Corrosion of Aluminum Alloys

Passivation behaviors of 6082 aluminium alloy under stress corrosion process

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