Content

Personal data City Brno Thermodynamics and Kinetics of alloys in Brno Personal scientific interests Selected projects Selected problems

PennState 9 June 2002

CV

Jiří Sopoušek Education

– Bc., Mgr. Study: Faculty of Natural Sciences ,Masaryk University Brno (physical chemistry)

– Graduate student: Institute of Physics of Materials, Acad. Sci. CR, Brno; CSc. (Ph.D.) degree awarded in physical metallurgy (phase equilibria in Fe-X-Y-C systems)

Scientific position– IPM AS CR, Brno (experiment & theory: phase equilibria,

carburisation, nitriding,…phase analyse Pedagogical/scientific position

– Assistant Professor, Faculty of Science, MU Brno, Inst. of Theoretical and Physical Chemistry ( weldments, low alloyed steels,…)

Czech Republic (10 mill. inhab.) , Brno (0.5 mill.)

Church: St. Peter

Atractions:

Trade Fares, medieval and baroque churches and buildings, Old City Hall, fragment of city walls, “Dragon”, Brno “wheel”, Grand Prix, caves, big lake, .. …….

Thermodynamics and Kinetics of alloys in Brno

“Institutes”– Institute of Physics of Materials, Academy

of Sciences of the Czech Republic (basic research and experiments, diffusion,….)

– VU 070 (technical problems in industry) “Schools”

– Dept. of Material Science, Faculty of Civil Engineering, BIT Brno (theory and experiment)

– Dept. of theoretical and Physical Chemistry, Faculty of Science, Masaryk University – Brno (theory)

“Others”

Castle: Špilberg (rebuild to fortress in 16 century)

FS.

MU

IPM

Civil. Eng. (5km)

Personal scientific interests

Foregoing problems– Phase equilibria and phase transformations in Fe-CR-Ni-C, Fe-Cr-Mn-

C, Fe-Cr-Mn-N– Carburisation and nitrogenation of steels– Simulation of chemical kinetics– Phase equilibria in systems with organic solvents and polymers

Now– Low alloyed steels (phase equilibria and phase stability)– Microstructure stability of steel weldments – Diffusion in steels and weldments at low temperatures

Kinetics of carbide precipitation in Cr-Mo steels

Identification:GA106/00/0855 Funding:Standard Project GA CR Duration:2000 - 2002 Project leader: Rudolf Foret (TU Brno)

Co-leaders:Dr. Ales Kroupa (ASCR), Dr. Jiri Sopousek (FSci MU Brno)

Project Description: The project deals with kinetics of important classes of Cr-Mo steels having great importance for many industrial fields which are used at temperatures 700-500°C.The main attention is aimed to the role of the initial material state, changes in the microstructure and population of precipitating phases at annealing temperature and to the states close to equilibria. The industrial and modelling materials will be investigated. The different heat treatment will be used for sample preparation in order to obtain few types of the initial microstructures. The kinetics phenomena will be investigated experimentally and complemented with their theoretical description. The diffusion and phase diagram calculation will be also performed. The few year exposed equilibrated samples of industrial steels are at disposal and it is supposed to obtain reliable information concerning the states close thermodynamic equlibrium, too.

Experimental and Theoretical Investigations of the Ni-based Systems

Identification:GA106/02/0876 Funding:Standard projects GA CR Duration: 2002-2004 Project leader:Dr. P. Brož (FS MU)Partners:Faculty of Science MU Brno, Institute of Physics of Materials AS CR

Project Description: – The quaternary Ni-Al-Cr-X (X: Co, W, Mo, V.…) systems. – Equilibrium experiments (, ’, phases, equilibrating 900-1200°C,…)– Kinetic experiment (microstructure stability, weldments,…)– Phase diagram prediction (CALPHAD method), weldment diffusion

simulation (DICTRA).

Selected problems

Al-Cr-Ni-X Experiment planning (phase diagram cross-cestions, weldment simulation, below 1000C)

– done C mobility assessment in Fe-Cr-C system at 500C (Fe-C/Fe-Cr

weldment experiment, graphite phase)

Steel weldment simulations (P91/ 3Cr1Mo / low alloyed Mo, Cr, V steel.

Carbide time evolution in low alloyed CrMoVW steels – in progress (cell simulation)

Fe-C/Fe-Cr weldment annealed at 500C

Carbide time evolution in low alloyed 1.4%Cr-1%Mo-0.3%V-0.17%C steel

Carbides: stable from start (VC, M7C3), carbide with limited life (M23C6), carbide precipitating at the end (M6C)

VC M7C3 M23C6 M6C

0h

300h

1000h

3000h

10000h

Equilibrium calculation

Yes Yes No yes

Websides

http://www.sci.muni.cz http://www.muni.cz http://www.ipm.cz http://www.chemi.muni.cz