article published Chin Chen author 114741 Martin Hofmann author Thomas Wallmersperger author TRR 285 - Project Area B project TRR 285 - Subproject B03 project TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten project <jats:title>Abstract</jats:title> <jats:p>Pitting corrosion is a critical durability concern for mechanically joined sheet metal components commonly used in automotive and industrial applications. The narrow interfacial gaps created during mechanical joining—typically of tens to hundreds of micrometers—lead to highly localized chemical environments with nonuniform distributions of chloride ions, hydroxide ions, and oxygen. These micro-environmental variations strongly influence pit initiation and growth, however, their impact on joint performance remains insufficiently quantified. The present numerical study investigates the sensitivity of pitting corrosion to local chemical conditions using a phase-field modeling framework. Systematic parameter variations are performed to examine how different electrolyte compositions affect pit evolution within joint interfaces. The results provide insight into corrosion-driven degradation mechanisms in mechanically joined assemblies and support future efforts to integrate corrosion modeling into the performance prediction of sheet metal components.</jats:p> Springer Science and Business Media LLC2026 eng 0972-2815 0975-164510.1007/s12666-026-03894-x 796 @article{Chen_Hofmann_Wallmersperger_2026, title={Numerical Investigation of Pitting Corrosion in Mechanically Jointed Components}, volume={79}, DOI={<a href="https://doi.org/10.1007/s12666-026-03894-x">10.1007/s12666-026-03894-x</a>}, number={6153}, journal={Transactions of the Indian Institute of Metals}, publisher={Springer Science and Business Media LLC}, author={Chen, Chin and Hofmann, Martin and Wallmersperger, Thomas}, year={2026} } Chen C, Hofmann M, Wallmersperger T. Numerical Investigation of Pitting Corrosion in Mechanically Jointed Components. <i>Transactions of the Indian Institute of Metals</i>. 2026;79(6). doi:<a href="https://doi.org/10.1007/s12666-026-03894-x">10.1007/s12666-026-03894-x</a> Chen, Chin, et al. “Numerical Investigation of Pitting Corrosion in Mechanically Jointed Components.” <i>Transactions of the Indian Institute of Metals</i>, vol. 79, no. 6, 153, Springer Science and Business Media LLC, 2026, doi:<a href="https://doi.org/10.1007/s12666-026-03894-x">10.1007/s12666-026-03894-x</a>. Chen, Chin, Martin Hofmann, and Thomas Wallmersperger. “Numerical Investigation of Pitting Corrosion in Mechanically Jointed Components.” <i>Transactions of the Indian Institute of Metals</i> 79, no. 6 (2026). <a href="https://doi.org/10.1007/s12666-026-03894-x">https://doi.org/10.1007/s12666-026-03894-x</a>. C. Chen, M. Hofmann, T. Wallmersperger, Transactions of the Indian Institute of Metals 79 (2026). C. Chen, M. Hofmann, and T. Wallmersperger, “Numerical Investigation of Pitting Corrosion in Mechanically Jointed Components,” <i>Transactions of the Indian Institute of Metals</i>, vol. 79, no. 6, Art. no. 153, 2026, doi: <a href="https://doi.org/10.1007/s12666-026-03894-x">10.1007/s12666-026-03894-x</a>. Chen, C., Hofmann, M., &#38; Wallmersperger, T. (2026). Numerical Investigation of Pitting Corrosion in Mechanically Jointed Components. <i>Transactions of the Indian Institute of Metals</i>, <i>79</i>(6), Article 153. <a href="https://doi.org/10.1007/s12666-026-03894-x">https://doi.org/10.1007/s12666-026-03894-x</a> 673942026-10-05T09:33:18Z2026-10-05T09:37:59Z