Metal dusting is a special form of corrosion occurring at high temperatures of 400 - 900 °C in carbon-oversaturated atmospheres with very low partial pressure of oxygen. Steels and nickel base alloys suffer strong carburization in this process, leading up to deposition of graphite in the material. This causes total disentegration and essentially dissolves the material to powder.
Fuel cells in vehicles are affected as well as SOFC block heat and power plants or reformer plants.
Our research aims at a direct interference with the catalytic deposition process of carbon on steel and nickel base alloys through a surface modification with tin. This concept has already been tested successfully on low-alloy and high-alloy steels as well as on nickel base alloys up to 3000h.
An innovative contribution for economy:
|Prof. Dr.-Ing. Michael Schütze|
|Tel.: +49 69 / 75 64-337
Fax: +49 69 / 75 64-388