FP6 priority
1.1.3   Nanotechnologies and Nanosciences, Knowledge-based Multifunctional Materials and New Production Processes and Devices
Title of the proposal

Grain boundary engineering of advanced metallic materials

Slovak Academy of Sciences, Institute of Materials Reserarch
Watsonova 47, 043 53 Kosice, Slovak Republic
A/Prof. Dr. Jozef JANOVEC, DrSc.,
+421 55 6323412

Research subject for a potential FP6 project

Microchemical (surface) analysis of grain boundaries in polycrystalline materials of different compositions, grain sizes and microstructure designs and defined interfaces in bicrystals. Thermodynamic characterisation of the segregation processes taking part in the materials with respect to the compositional and orientation changes.

Phase analysis of the bulk material to define the microstructure determination of microchemical changes at grain boundaries. Thermodynamic support of the experimental measurements.

Influence of interface chemistry on energy balance along grain boundaries. Analysis of intergranular fracture along adsorbate internal surfaces with impact to the service reliability of heavy parts used in energy industries.

Contribution to the concept of grain boundary engineering.

Recent international cooperation of the research team

Max-Planck Institute fur Eisenforshung, Dusseldorf (Germany), University of Limerick (Ireland),Institute of Metals and Technology, Ljubljana (Slovenia), Academy of Sciences of the Czech Republic: Institute of Physics, Prague and Institute of Physics of Materials, Brno (Czech Republic)

Proposer΄s relevant publications related to the research subject

J. Janovec: Nature of alloy steel intergranular embrittlement, VEDA, Bratislava 1999.
J. Janovec – J. Blach - P. Zahumensky - V. Magula – J. Pecha: Role of intergranular precipitation in the fracture behaviour of AISI 316 austenitic stainless steel, Canadian Metall. Quarterly, 38, 1999, 53-59.
J. Janovec – A. Vyrostkova – J. Perhacova – V. Homolova – H. J. Grabke – P. Sevc – M. Lucas: Effect of vanadium on grain boundary segregation of phosphorus in low alloy steels, Steel Research, 70, 1999, 269-273.
J. Perhacova - A. Vyrostkova - P. Sevc - J. Janovec – H. J. Grabke: Phosphorus segregation in CrMoV low-alloy steels, Surface Science, 454-456, 2000, 642-646.
J. Janovec – D. Grman – J. Perhacova – P. Lejcek – J. Patscheider - P. Sevc: Thermodynamics of phosphorus grain boundary segregation in polycrystalline low-alloy steels, Surface and Interface Analysis, 30, 2000, 354-358.
E. Clauberg - J. Janovec – C. Uebing – H. Viefhaus – H. J. Grabke: Surface segregation on Fe-25%Cr-2%Ni-0.14%Sb-N,S(100) single crystal surfaces, Applied Surface Science, 161, 2000, 35-46.
J. Perhacova - D. Grman – M. Svoboda - J. Patscheider – A. Vyrostkova - J. Janovec: Microstructural aspects of phosphorus grain boundary segregation in low alloy steels, Materials Letters, 47, 2001, 44-49.
J. Janovec – M. Bogyo – J. Blach - P. Zahumensky – A. Vyrostkova: Splitting of AISI 316 austenitic stainless steel, Canadian Metall. Quarterly, 40, 2001, 97-104.
P. Sevc - J. Janovec – P. Lejcek – P. Zahumensky - J. Blach: Thermodynamics of phosphorus grain boundary segregation in 17Cr-12Ni austenitic steel, Scripta Materialia, 46, 2002, 7-12.