Authors

Stability of MC Carbide Particles Size in Creep Resisting Steels
abstract, article page 147 - 153 pdf - 1305 kB

Method for Pocket Die Design on the Basis of Numerical Investigation of
Aluminium Extrusion Process abstract, article page 155 - 161 pdf - 1900 kB

F. Vodopivec, M. Jenko, J. Vojvodič - Tuma - Stability of MC Carbide Particles Size in Creep Resisting Steels

     Theoretical analysis of the dependence microstructure creep rate. Discussion on the effects of carbide particles size and their distribution on the base of accelerated creep tests on a steel X20CrMoV121 tempered at 800 °C. Analysis of the stability of carbide particles size in terms of free energy of formation of the compound. Explanation of the different effect of VC and NbC particles on accelerated creep rate. pdf - 1305 kB

O. Golovko, I. Mamuzić, O. Grydin - Method for Pocket Die Design on the Basis of Numerical Investigation of Aluminium Extrusion Process

     The paper considers dependencies of metal forming characteristics on dimensionless geometrical parameters of flat pocket die design at direct extrusion of aluminium thin-walled solid profiles. The theoretical analysis of plastic metal flow is carried out by means of the 2 -D FEM model. The new method for flat pocket die design is proposed in the paper. The die design example is given for non -symmetrical U-shape profile. pdf - 1900 kB

Ľ. Mihok, P. Demeter, D. Baricová, K. Seilerová - Utilization of Ironmaking and Steelmaking Slags

    The paper deals with the most important processes used for treatment of blast furnace and steelmaking slags and with the most important ways of their utilization. The method of recycling of steelmaking slags that followed from own experiments of the authors, are described. Proposal for way of utilization of one sort of ladle furnace slag is also included. pdf - 1150 kB

W. Lehnert, R. Kawalla, D. Hübgen - Herstellung von Hochwertigen Bändern und Blechen aus Aluminiumwerkstoffen

    Die Aluminiumproduktion is t weltweit in den letzten Jahren angewachsen. Für Deutschland ist ein besonders starker Anstieg des Sekundäraluminiumanteils charakteristisch. Mehrere Betriebe mussten die energieaufwändigere Primäraluminiumherstellung aufgeben bzw. auslagern. Dieser Trend hält an. Der Datenüberblick über Produktion und Verbrauch an Al beleuchtet die gegenwärtige Situation. Er wird ergänzt durch technische Angaben der Herstellung von Bändern in den Fertigungsstufen des Warm- und Kaltwalzens sowie der Wärmebehandlung. Die Versuchsanlagen zur experimentellen Simulation des Institutes als Voraussetzung für Aufstellung von Fortschrittstechnologien und die mathematische Modellierung werden beschrieben. Ergänzend werden ausgewählte Untersuchungsergebnisse mitgeteilt. pdf - 2845 kB

Ya. V. Frolov, I. Mamuzić, V. N. Danchenko - The Heat Conditions of the Cold Pilger Rolling

    The influence of technological factors and constructive parameters of the cold pilger rolling mill to the warm conditions of deformation is observed. The dependences of the heat conditions of pilger rolling on deformation mode and preheating temperature are shown. There was a conclusion drawn about the expediency of combination of warming and cooling of the metal for keeping the deformation zone temperature within limit, which corresponds to the minimal intensity of the metal strengthening. pdf - 1680 kB