STRUCTURAL AND MECHANICAL PROPERTIES OF HEAT RESISTANT TITANIUM ALLOWS OF THE TI-24.5AL-24.5NB (AT.%) SYSTEM

Abstract

Heat resistant titanium alloys with various types of microstructure and homogeneous distribution of components were obtained using high-energy processing of powder mixtures in a planitary mill, followed by spark plasma sintering (SPS). Isothermal sections of the Ti-24,5Al- 24,5Nb (at.%) system at SPS (1000, 1200 and 1300°C, 1550) were studied using X-ray diffraction, scanning electron microscopy and energy-dispersive spectral analysis. Three-point bending mechanical tests were carried out at room temperature on Instron 5966 universal testing machine...