Examination of zinc coated "Sandwich Steels" construction

Project leader: Prof. Dr. W. Maus-Friedrichs

Funding period: 07/2016 – 06/2019
Funding body: International Zinc Association /USA
Reference number: ZCO-74

Researcher: M. Sc. Lisa Wurlitzer

Laboratories: 422N (IEPT)

Examination of zinc coated "Sandwich Steels" construction

Through climate change many innovations in industrial fields are yielding. So, emissions of green-house gases like CO2 shall be heavily reduced. This has a massive impact on the automobile industry - which is involved as a big part in CO2 emission. The fuel consumption can be reduced in many ways. One possibility is to reduce a vehicle’s weight, for this case materials like aluminium are very popular. Nowadays, the possibilities of reducing the weight of steel components are very limited. The component might be manufactured thinner, but this causes a decrease of bending stiffness. To guarantee a good stiffness “steel sandwich materials” could be used. Currently, such materials exist as a bound of steel and thermoplastics - which are already used in some parts of a vehicle. Nevertheless, it is not possible to use them in a continuous galvanization process. So, the area of application of those boundings remains small.

Aim of this project is to develop a light weight sandwich material of steel and carbon fiber, which is usable in the automobile industry and resists their manufacturing processes. Thus, this material shall be assembled in an automobile to reduce weight, without decreasing bending stiffness. The production of this bounding can be realized by using dielectric impeded discharge (DID). Through surface modification by plasma processes, new reactions can be fostered. Thereby it is going to be possible to combine the non-adherent materials steel and carbon fiber to a bounding. Simultaneously, a cover against atmospheric corrosion is created, which makes the sandwich material ideal for the automobile industry.


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