J. Hampl, B. Smetana, VŠB-TU Ostrava, Faculty of Metallurgy and Materials Engineering, Czech Republic J. Odehnal, PILSEN STEEL, s.r.o., Pilsen, Czech Republic The paper analyzes the technological parameters, micro-purity and mechanical properties of castings of steel alloyed with calcium. The effect of calcium on the steel was analyzed on samples taken in the process of casting heavy castings a...

1 School of Metallurgy, Northeastern University, Shenyang 110004, China 2 State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, China 3 School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243002, China 4 Department of Materials Science and Engineering, Delft University of Technology, 2628 CD Delft, The Netherlands * E-mail: [email protected]...

In this paper an attempt has been made to correlate the usefulness of electrodes made through powder metallurgy (PM) in comparison with conventional copper electrode during electric discharge machining. Experimental results are presented on electric discharge machining of AISI D2 steel in kerosene with copper tungsten (30% Cu and 70% W) tool electrode made through powder metallurgy (PM) techniq...

B. Wang, Z. G. Yang, X. F. Zhang, Y. T. Wang, C. P. Nie, Q. Liu, State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, China Z. G. Yang, Special Steel Plant, Laiwu Iron & Steel Co. Ltd., Laiwu, China B. Wang, H. B. Dong, Department of Engineering, University of Leicester, Leicester, UK In the current study, a 260 mm × 300 mm bloom mould was investig...

This article is focused on the description of the main features of an online system for the real time monitoring and prediction of the liquid steel temperature in the ladle and tundish. Monitoring and prediction are based on a combination of analytical and statistical methods. Thus e.g., the temperature profiles of the walls are calculated using multi-layer implicit difference scheme taking int...

B. Gajdzik, The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland The publication presents the prognostic modeling of steel production in Poland by 2020. Based on the general framework predicting, an attempt was made to adjust the model to empirical data, which were related to the size of steel production in Poland. Two prognostic approaches were u...

The aerospace industry is one of the biggest consumers of advanced materials because of its unique combination of mechanical and physical properties and chemical stability. Highly alloyed stainless steel, titanium alloys and nickel based superalloys are mostly used for aerospace applications. High alloyed stainless steel is used for the shafts of aero engine turbines, titanium alloys for compre...

P. Kawulok, I. Schindler, R. Kawulok, S. Rusz, P. Opěla, J. Kliber, M. Kawuloková VSB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Czech Republic Z. Solowski, K.M. Čmiel Třinecké železárny a.s., Czech republic Formability of hypereutectoid C-Mn-Cr-V steel in hot condition was investigated with use of plastometric methods. A wide range of deformation temper...

T. Kubina, J. Kliber, L. Kunčická, M. Berková, J. Horsinka, VŠB – Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Czech Republic J. Bořuta, Material & Metallurgical Research, Ltd., Ostrava, Czech Republic Energy dissipation and areas of process instability were investigated in two alloys. The fi rst one was brass, the second one was the steel 9 Cr (P91). The te...