Laser-assisted synthesis in CueAleNi system and some of its properties

Abstract

Conditions of intermetallic phase synthesis during layerwise selective laser sintering/melting in CueAl eNi powdered system were explored. There to we used optical and scanning electron microscopy, EDX and XRD analysis for microstructure testing and intermetallide identification in porous 3D samples depending on the laser syntheses regimes. A high laser sintering ability of the prepared mixtures and shape memory effect in 3D samples by results of specific electrical resistance measurements were shown. Porosity of the laser-synthesized Al7Cu4Ni intermetallide led to a peak shifting by the temperature axis and the intervals of the AseAf austenite transformation and MseMf martensite transformation were 50 ÷ 80 C and þ25 ÷ 40 C respectively.