Microstructure Modifications and Associated Corrosion Improvements in GH4169 Superalloy Treated by High Current Pulsed Electron Beam

Figure 2

Metallographic images of the samples with different HCPEB pulses (a) 1 pulse, (b) 10 pulses, (c) 20 pulses, and (d) evolution of crater density with the number of pulses.

(a)

(b)

(c)

(d)