Assessment of the properties and structure of porous titanium samples via magnetic pulse compaction

In recent decades, intensive research and effective efforts have been made to apply titanium and titanium alloys in mechanical engineering, the chemical industry, medicine, and other fields. Powdered materials based on titanium play a significant role in this process. Titanium is well suited for various technological applications due to its combination of high strength, low specific weight, and high corrosion resistance. Tubular and ring-shaped products made from titanium powder occupy a certain niche. This study aims to investigate the possibility of producing single-layer and multi-layer tubular samples from titanium powder using the magnetic pulse sintering method. The materials used for the research were titanium powders obtained by grinding titanium sponges with particle sizes ranging from 80 to 250 μm. The microstructure of the obtained samples showed the potential to produce tubular and ring-shaped products with porosity ranging from 30% to 50%. It was found that the outer surface of the single-layer tubular samples is more porous and has lower hardness than the inner surface, which can be explained by the use of a low-melting material applied to the inner surface of the shell during magnetic pulse compaction. When producing a two-layer sample, higher strength can be achieved while maintaining permeability.