Intermetallic Alloys Ni3Si and Ni3(Si,Ti): Microstructures and Properties
Laser cladding experiment was carried out with a 5 kW continuous wave CO2 laser by preplacing Ni75Si25 and Ni78Si13Ti9 powders onto Ni-based superalloy substrate. The microstructure of the specimens was monitored by using optical and scanning electron microscopy. The chemical compositions of the alloys and their phases were obtained using X-ray diffraction and energy dispersive x-ray spectroscopy. The phase transformation temperatures were determined by non-isothermal differential scanning calorimetry tests. The microhardness of the laser cladded sample was measured.
Wei Pan and Jianghong Gong
D. Fan et al., "Intermetallic Alloys Ni3Si and Ni3(Si,Ti): Microstructures and Properties", Key Engineering Materials, Vols. 368-372, pp. 1143-1145, 2008