Research » Titanium Metallurgy

Titanium is called the material of the future. This title results from the unique combination of properties such as good corrosion resistance, high strength and biocompatibility with low density. Due to these properties, titanium alloys are increasingly being used in areas such as aerospace, automotive, chemical or medical technology.
Despite its relative commonness as the fourth most abundant element in the earth’s crust, titanium remains denied a wide industrial use. The reason for this is the high price of the metal, which results from the production costs. To reduce these and thus to allow the titanium the broad mass accessibility is a big challenge in research.
A reduction in process costs could be achieved both by minimizing process steps and increasing efficiency. For this reason, investigations have been made in the past for the direct recovery of titanium from rutile. By aluminothermic conversion of the TiO2 with aluminum so the costly chlorination and reduction step in the Kroll-method could be omitted. Furthermore, optimizations of this process have been made such as the mechanical activation of the rutile (reduction of  booster   up to 30%) or the study of alternative booster agents (reduction of chlorine emissions).
The recycling of the more frequently used titanium powders in additive manufacturing is also being pursued. In the HDH process, these powders are processed and prepared for further usein metallic 3D-printing.

Project List


Publications

YearPublications
2007
article in scientific journal
Advanced Engineering Materials 2007, Volume 9, No. 4, S. 246 – 252.
2007
congress or congress paper
LMPC – International Symposium on Liquid Metal Processing and Casting, September 2 – 5, 2007, Nancy, France
2007
congress or congress paper
European Metallurgical Conference â EMC 2007, June 11 – 14, Düsseldorf, Germany
2007
congress or congress paper
European Metallurgical Conference â EMC 2007, June 11 – 14, Düsseldorf, Germany
2006
congress or congress paper
Proceedings of the 38th IOC on Mining and Metallurgy, 06. – 08. October 2006, Donji Milanovic, Serbien, S. 658 – 664
A. Kostov, D. Živković, Bernd Friedrich
2006
article in scientific journal
Journal of Mining and Metallurgy, Vol. 42, No. 1, 2006
Ana Kostov, Dragana Zivkovic, Bernd Friedrich
2006
article in scientific journal
Computational Materials Science, Vol. 38, Issue 2, 2006, S. 374 – 385.
A. Kostov, Bernd Friedrich
2005
congress or congress paper
Brücken für die Forschung, Einfuehrungstagung, Alexander von Humboldt Foundation, Bonn, 19.-21. April 2005, Germany, p.65.
Ana Kostov, Bernd Friedrich
2005
article in scientific journal
Journal of Mining and Metallurgy, Heft 41 B, 2005, S. 113 – 125.
A. Kostov, Bernd Friedrich
2005
congress or congress paper
In: Proceedings of the 37th International October Conference on Mining and Metallurgy, 3. – 6. Oktober 2005, Bor Lake, Serbien-Montenegro.
Kostov, A., Bernd Friedrich, Zivkovic, D.

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