Co-investigator: Ing. Bořivoj Million, DrSc.
Number of Project: 106/98/1367
Agency: Czech Science Foundation
Duration: 01. 01. 1998 - 31. 12. 2000

The aim of proposed project is: l. To get new a piece of knowledge concerning the thermodynamic and diffusion characteristics P and C in steels. 2. To derive a theoretical model which will make it possible to evaluate the concentration data of P and C in the given weld joints measured after diffusion anneals in the temperature interval 500 to 1100 °C. This model will also make it possible to predict P and C redistribution in steel weld joints presuming that the necessary diffusion and thermodynamic characteristics will be at disposal together with chemical composition of the steels. 3. To derive a model which will make it possible to describe the concentration heterogeneity of P and Fe in the steel ingots Fe-P after casting and to express the heterogeneity decrease in the course of the following heat treatment.

B. Million, K. Stránský, P. Michalička, A. Rek: Diffusion and Thermodynamics of Phosphorus, Carbon, Chromium, and Nickel in Welding Joints of Steels. Kovove Mater. 39, 2001, 161.

R. Foret, B. Million, M. Svoboda, K. Stránský: Structural Stability of Dissimilar Weld Joints of Steel P91. Sci. Tech. Weld. Join. 6, 2001, 405.

B. Million, K. Stránský, P. Michalička, R. Foret and A. Rek: Carbon and Phosphorus Redistribution in Welded Joints of Carbon Steels CSN(412050+0.1). METAL 2000 - 9^th International Metallurgical & Material Conference, Ostrava, Czech Republic, May 16-18 2000, CD-ROM.

K. Stránský, J. Kučera, B. Million and J. Šenberger: Problematika posuzování a význam vlivu teploty na interakční součinitele v železe a oceli. Teorie a praxe výroby a zpracování oceli, Rožnov pod Radhoštěm, Czech Republic, April 5-9, 2000.

K. Stránský, J. Šenberger, V. Hoch, F. Kavička, and B. Million. Krystalizace taveniny LKG - růst a heterogenita grafitických buněk. 14. celostátní konference "Výroba a vlastnosti oceli na odlitky a tvárné litiny", Brno, Czech Republic, September 12-13 2000.