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

The values of hardness (H) and of Young's modulus (E) were measured for the Ti-2.2 wt% Fe alloy using method nanoindentation. The alloy was annealed at three different temperatures, i.e. in three different regions of the Ti-Fe phase diagram (β; α+β; α+intermetallic). The samples were quenched in water and then subjected to high-pressure torsion (HPT). It is shown that the values of H and E are...

The present study investigates the influence of thermomechanical (TM) processing conditions on microstructure and mechanical properties of new beta-Titanium alloy (belonging to Ti-Nb-Ta-Zr system), by SEM-EBSD (Scanning Electron Microscopy - Electron Backscatter Diffraction), XRD (X-ray Diffraction), tensile and microhardness testing techniques. The beta-Titanium alloy was produced in...

Commercial superelastic polycrystalline NiTi has big potential in compression-based elastocaloric cooling technology but suffers high transition stress, large hysteresis and functional degradation in cyclic phase transition. In this study, we enhance the cyclic stability together with the reduction of transition stress and hysteresis by one-step overstressed compressive plastic deformation....

Abstract: Aluminium alloys and composites are the preferred structural materials for aerospace applications, considering their superior multifunctional properties (high strength-to-weight ratio and fatigue resistance and increased resistance to stress corrosion cracking), which are highly desirable for aircraft and spacecraft structures. Maximum use shall be made of aluminium metal matrix...

The goal of this work is the observations of grain boundary phase transformations in Al and Cu-based alloys with the aid of differential scanning calorimetry. High-pressure torsion has been used to obtain the ultra-fine grained state with a high specific area of grain boundaries in Al–Zn, Al–Mg, Cu–Ag, Cu–Co, and Cu–Ni solid solutions with face-centered cubic (fcc) lattices. The ultra-fine...