Assessment of the possibility of quenching pipes made of titanium alloys after pressing

Abstract

The purpose of the work is to determine the possibility of quenching pipes made of titanium alloys after pressing. To evaluate the level of properties and the structure of pipes after quenching, which will ensure further cold rolling. Methodology. The following methods used: metallographic methods that research-optical microscopy, tensile testing of pipes to assess mechanical properties, Brinell and Rockwell hardness measurements. Results. The structure and mechanical properties of pipes made from Gr 9 and PT-1M titanium alloys after pressing and quenching in water were studied in comparison with air cooling. The possibility of quenching pipes after pressing is shown. The level of mechanical properties and type of structure allows for subsequent plastic deformation of pipes by cold rolling methods. After quenching, the pipe should be thermally treated. Scientific novelty. The impact of quenching after pressing on the structure and mechanical properties of pipes made from titanium alloys has been established. The possibility of quenching pipes after pressing is shown. Practical significance. The established possibility of the quenching process allowed in the technological process of manufacturing titanium pipes to improve the surface quality of pressed pipes, avoid the operation of turning and thereby reduce the consumption coefficient of the metal.