Abstract The phase field method is a powerful tool for studying microstructural evolution in various domains of material sciences, including phase change, initiation and propagation of fracture. In this work, a new formulation is developed based on the phase field method for modeling stress corrosion cracking (SCC) induced by anodic dissolution. This method was applied for modeling SCC of an aluminum alloy (2xxx series) in a saline medium (NaCl), which allows considering the effects of both electrochemical and mechanical processes. The classical phase transition model for material dissolution is coupled with the mechanical problem in a robust manner, providing an efficient tool for studying the competition between electrochemical and mechanical contributions to fracture. A numerical implementation based on finite elements is elaborated. The numerical results are compared to experimental data obtained by in situ microtomography.

中文翻译：

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一种模拟阳极溶解引起的应力腐蚀裂纹扩展的相场方法

摘要 相场法是研究材料科学各个领域微观结构演化的有力工具，包括相变、断裂的萌生和扩展。在这项工作中，基于相场方法开发了一种新的公式，用于模拟阳极溶解引起的应力腐蚀开裂 (SCC)。该方法用于模拟盐水介质 (NaCl) 中的铝合金（2xxx 系列）的 SCC，从而可以同时考虑电化学和机械过程的影响。材料溶解的经典相变模型以稳健的方式与机械问题相结合，为研究电化学和机械对断裂的贡献之间的竞争提供了有效的工具。详细阐述了基于有限元的数值实现。