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Metal science and metallography
Название New methods in material design: “Steel ab initio” enters the third phase
Автор W. Bleck, S. Bruhl
Информация об авторе

Rhein-Westfalia Technical University — RWTH (Aachen, Germany):

Bleck W., Dr. Eng., Prof., Head of Dept. in the IEHK Steel Institute, e-mail: bleck@iehk.rwth-aachen.de
Brühl S., Dr. Eng., CEO of the IEHK Steel Institute, e-mail: sonja.bruehl@iehk.rwth-aachen.de

Реферат

Abstract: Since 2007 the Collaborative Research Center CRC 761 “Steel ab initio – quantum mechanics guided design of new iron-based materials” works on a mechanism-driven material development using the example of high Mn steels. After the successful approval for the continuation of the project by the Deutsche Forschungsgemeinschaft, the collaboration of scientists and engineers of the RWTH Aachen University and the Max Planck Institut für Eisenforschung in Düsseldorf will continue in the third funding phase from July 2015 to 2019. In 17 part projects and two transfer projects involving industrial partners diff erent topics of materials design are handled. After successful finishing of the project the serious progress in development of structural materials and processes for their fabrication is expected. In particular, the experimental and numerical methods for prediction of steels are created; the structure of these steels is directly forming at nanometric level. It is important in this connection to conduct transformation of overcooled austenite at very low temperatures and in the conditions of mechanical effect. The achieved combinations of mechanical properties exceed substantially the requirements for up-to-date steels due to high density of defects and local difference in chemical composition.

Ключевые слова High-manganese steels, deformation, package defects, crystal growth, grain structure, aluminium, austenite
Библиографический список

1. Bouaziz, O.; Allain, S.; Scott, C. P.; Cugy, P.; Barbier, D.: High Manganese austenitic twinning induced plasticity steels: A review of the microrstructure properties relationships, Current Opinion in Solid State and Materials Science 15 (2011) Nr. 4, S. 141/68.
2. Hansoo Kim, Dong-Woo Suh, Nack J. Kim: Fe-Al-Mn-C lightweight structural alloys: a review of the microstructures and mechanical properties, Sci. Technol. Adv. Mater. 14 (2013) 014205.
3. De Cooman, B. C.; Kwang-geun Chin, Jinkyung Kim: High-Mn TWIP steels for automotive applications, [in:] New Trends and Development in Automotive System Engineering, Intech Open Science, Rijeka, Kroatien, 2011, ISBN 978-953-307-517-4.
4. High-Manganese Steels 2014, Proc, [Ed.] Bleck, W.; Raabe, D., Steel Institute, RWTH Aachen University, Aachen, 2014.
5. Freysoldt, C.; Grabowski, B.; Hickel, T.; Neugebauer, J.; Kresse, G.; Janotti, A.; van de Walle, C.: First-principles calculations of point defects in solids, Rev. Mod. Phys. 86 (2014) Nr. 1, S. 253.
6. Scholl, D.; Steckel, J.: Density — functional theory — a practical introduction, John Wiley & Sons, Inc., USA, 2009.

Language of full-text русский
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