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. 2019 Mar 2;9(3):335. doi: 10.3390/nano9030335

Figure 9.

Figure 9

Metallographic structure of tool steel 55NiCrMoV7 after PMEDM: (a,b) Uc = 25 V, I = 1 A, ton = 5 µs, toff = 5 µs, dielectric without RGO; (c,d) Uc = 25 V, I = 1 A, ton = 5 µs, toff = 5 µs; RGO = 0.1%; (e,f) Uc = 25 V, I = 2 A, ton = 8 µs, toff = 5 µs, RGO = 0.5%; (g,h) Uc = 25 V, I = 2 A, ton = 8 µs, toff = 5 µs, RGO = 1%.