Daniel Höche, HZG, Germany; Nils Bösch, Daimler AG, Germany
Galvanic corrosion, which occurs when the surfaces of different adjoining metals begin to degrade, costs the automotive industry billions of dollars annually. The reactions of these different metal combinations is influenced by material properties, surface roughness, and joining techniques in the components.
Researchers at Helmholtz-Zeentrum Geesthacht (HZG) and Daimler AG created COMSOL Multiphysics applications to study corrosion in automotive parts found in car paneling. Simulation helped researchers investigate electrochemical reactions on the surface of the rivet, analyze decay in sheet metal, and understand the effects of geometry on the corrosion process. They also modeled delamination of the steel sheet and assessed the growth of a crevice between the metal layers and a cathodic coating as the zinc plating was consumed. With the understanding they gained of the electrochemical behavior, they were able to provide engineers at HZG and Daimler AG with key information to improve corrosion protection in automotive parts.
Suggested Stories
Helping the World Listen with Hearing Aid Technology
In this Q&A, Michele Colloca of Sonion discusses the main challenges in designing hearing aids and how modeling ...
Developing a New Microreactor for Organic Synthesis Using Microwave Heating
The chemical reactions used to generate solvents and certain pharmaceuticals rely on organic synthesis, a process of ...
Multiphysics Simulation Helps Miele to Optimize Induction Stove Designs
The induction stove was designed to meet a consumer need for better precision and speed than traditional stoves. ...
Simulation Advances the Design of a Microfluidic Therapeutic Cell Sorter
The Technology Partnership (TTP), a firm that consults on technology development, created a vortex-actuated cell ...
