Development of High-Temperature Corrosion Resistant Spun-Cast Materials - A Comparative Study of Alumina- and Chromia-Forming Alloys

Over several decades, centrifugally cast iron or nickel based chromia forming alloys were installed in high temperature applications due to their excellent creep strength and good corrosion resistance.

And in order to improve materials and develop new alloys, researchers typically focused on independent testing of different corrosion mechanisms like e.g. cyclic oxidation tests, gas phase carburization tests or pack carburization tests and coking tests.

A comparative test method was developed for testing under conditions very close to the conditions in a steam cracking furnace. The first aim of these studies was to investigate and understand the process of materials deterioration from the initial steps of oxidation until the material is starting to fail.

Results of this comparative testing and also new insights into corrosion mechanisms in reducing hydrocarbon containing atmospheres will be presented.

Biography

Dr. Dietlinde Jakobi is holding a master’s degree in technical chemistry and a Ph. D. in natural sciences from the Technical University of Aachen, Germany. Dr. Jakobi joined Schmidt + Clemens in January 1999. She is currently the Director of the Schmidt + Clemens “Research & Development Services” Department.

In this role, her responsibilities cover five manufacturing sites worldwide and the coordination of a team of 25 highly qualified researchers and technicians providing technical consultancy and metallurgical services and working continuously on about 30 different R&D; projects.