Pulsed Discharge Preparation of a Modifier of Ti–TiC System and its Influence on the Structure and Properties of the Metal

Pulse discharge preparation of AL–TI–C system grain refiner for modification of melts

“…Most grain refiners are made using powder metallurgy methods, and ultrafine nanostructured powder mixtures are the most promising for use. Currently, the main directions of development of methods of obtaining such mixtures are as follows [2][3][4]: a) improvement of existing equipment and technological processes, based on common mechanical methods of materials grinding; b) search for fundamentally new ways of grinding, research, and development of effective types of equipment and technology, based on them.…”

“…In [2], on the example of the application of the grain refiner during casting, it was shown that the introduction of 0.01% (wt.) Ti -TiC powder (which was synthesized by HVED treatment on Ti powder in kerosene and briquetted by spark plasma sintering) allowed reducing grain size from 1-2 mm to 0.2-0.6 mm in all modified samples of SM88U high-temperature alloy.…”

Development of Determination Methodology of Electrical Conductivity of Titanium-based Composites

“…These composites have potential to be used in the aviation industry for their good specific strength, lightweight, heat and wear resistance [1]. They are already used in aircraft engines and gas turbines [1,2]. Determination of material properties of these novel composites require further studies and experimental tests.…”

“…The Ti-based composites are manufactured using high voltage electrical discharge (HVED) and spark plasma sintering (SPS) methods from powders. After HVED process composite contains carbides and MAX phases [2,3]. In addition, the particle size is reduced and all components are distributed evenly [2].…”

“…After HVED process composite contains carbides and MAX phases [2,3]. In addition, the particle size is reduced and all components are distributed evenly [2]. Porosity inside the microstructure occurs due to air bubbles that appear during manufacturing and interaction between matrix and reinforcement particles [4].…”