Thermal Stability of the Al–2.3%V Powder Compared with That of Al Used on 3D Printers Depending on the Heating Rate

The oxidation stability and phase formation sequence for pure aluminum APK and Al–2.3%V alloy heated in air at rates of up to 100°C/min were analyzed by thermogravimetry with differential scanning calorimetry and X-ray diffraction using synchrotron radiation. It was established that an increase in the heating rate from 10 to 100°C/min does not significantly change the thermal stability of the modified Al powder. The presence of Al 3 V and Al 10 V intermetallic compounds, as well as a small amount of γ-Al 2 O 3 , in the structure of the alloy should favor consolidation of metal particles and reduce the porosity of the resulting product during selective laser melting (SLM).