Aging Thermal Treatment in the Inconel 725 Brazed Incorporating Tungsten Nanoparticles

Figure 3

SEM images of brazed specimens using W-NPs and BNi-9 filler metal aged at 750°C for (a) 2 h and (c) 14 h. (b) A zoom of (a) shows the eutectics, Ni₃B zones, and their EDX spectrum. (d) A zoom of (c) shows the eutectics, Ni₃B zones, and their EDX spectrum.