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This analysis reveals key corrosion failure modes in automobile components, suggesting improvements in corrosion resistance.
Automobile corrosion remains a multifaceted challenge, compromising automotive aesthetics, material integrity, and operational safety while concurrently contributing to resource inefficiencies. This study systematically investigates the cases of corrosion-induced automotive recalls and post-sales complaints in China. A novel disassembly-based corrosion analysis methodology is proposed to enable standardized evaluation of corrosion resistance in automotive structural components. This study adopted a comparative disassembly analysis of two representative automobile Models from different manufacturers, combined with multi-environment exposure data and modeling of corrosion influencing factors, to determine the main corrosion failure modes of key automotive mechanical structures. Targeted optimization strategies are formulated to be conducive to the refined study of the corrosion behavior of different mechanical structures. Additionally, based on the corrosion appearance and weight loss results of the steel structure, accelerated corrosion testing is conducted on automotive steel substrates, which measures weight loss and ultimate tensile strength. These findings underscore the criticality of corrosion prevention measures in maintaining material mechanical properties.
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Liu et al. (2025) studied this question.
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