SIMULATION SUCCESS STORIES

Daimler Simulates Corrosion Protection in Automotive Paneling

汽车

Daniel Höche, HZG, Germany; Nils Bösch, Daimler AG, Germany

当不同金属的接触面发生劣化时,就会发生电偶腐蚀,这类腐蚀每年都会给汽车行业造成数十亿美元的损失。不同金属组合的反应会受到材料属性、表面粗糙度以及组件连接技术的影响。

德国亥姆霍兹联合会 (HZG) 和戴姆勒集团 (Daimler AG) 的研究人员开发了 COMSOL Multiphysics App 来研究在轿厢壁板处的汽车零件中发现的腐蚀。研究人员借助仿真分析了铆钉表面的电化学反应、金属板材的腐坏,并理解了几何对腐蚀过程的影响。他们还模拟了钢板的脱层及不同金属层之间裂隙的生长,评估了阴极膜随镀锌被消耗的表现。理解了这些电化学特性之后,他们将能为 HZG 和戴姆勒集团的工程师们提供有关如何改进汽车零件的腐蚀防护的关键信息。

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