Deposition of TiC on γ-TiAl Alloys by Directly Applying Voltages
Two γ-TiAl alloys, Ti-47Al-2Nb-2Cr (MJ12) and Ti-47Al-2Nb-2Mn-0.8TiB2 (MJ47), were pressed in C powder to form rods and carburized by directly applying electrical power through them at 274.3 ± 26.4 W, 80 A for MJ12 and at 293.4 ± 16.8 W, 80 A for MJ47 in Ar atmosphere. The alloys were analysed using an x-ray diffractometer (XRD), a scanning electron microscope (SEM) equipped with an energy dispersive x-ray (EDX) analyser and a Rutherford backscattering spectrometer (RBS) incorporated with NUSDAN solfware. Knoop hardness and wear resistance were improved and found to be in accord with the analytical results.
T. Vilaithong, D. Boonyawan and C. Thongbai
C. Boonruang et al., "Deposition of TiC on γ-TiAl Alloys by Directly Applying Voltages", Solid State Phenomena, Vol. 107, pp. 145-150, 2005