EUROPEAN CONGRESS AND EXHIBITION ON ADVANCED MATERIALS AND PROCESSES - EUROMAT 2021

Information on thermophysical properties of molten metals and alloys and their high temperature behaviour in contact with different solid materials is of a great practical importance for liquid-assisted materials processing, particularly for computer-aid liquid metal engineering and process optimisation.
To meet the constantly growing interest in knowledge of the factors influencing the properties and high temperature phenomena in liquid and semi-liquid metallic materials a special device has been designed. New testing procedures allowing real-time observation and measurements in different gaseous environments at a temperature of up to 2100 ◦C have been developed. Besides testing by a conventional sessile drop method accompanied with a contact heating procedure, the novelty of a new apparatus includes: 1) new testing procedures that mimic liquid metal behaviour in real high temperature processes such as rolling drop and falling drop; 2) a unique possibility to apply in one test a few different methods (sessile drop, pendant drop) and testing procedures (two options of non-contact heating of a couple of dissimilar materials, drop cleaning by capillary purification, drop sucking, drop pushing, drop smearing, rolling drop, falling drop); 3) a special heating system allowing the use of heaters made from different materials and producing dissimilar atmosphere inside the testing chamber, 4) the mobility allowing to combine newly designed device with another facility for materials testing and characterization, e.g. using synchrotron radiation or computed tomography analysis. Several examples of high temperature testing of various metals and alloys will be discussed.

This work was financed within OPUS16 Program by the National Science Centre of Poland (Project No: UMO-2018/31/B/ST8/01172).