
348 Engineering of Polymers and Chemical Complexity
FIGURE 7 SEM images of the Ti-6Al-4V sintered alloy after electrochemical etching in 1M
H3PO4 + 2% HF electrolyte at 10 V for 30 min: (a) and (b) – surface morphology (different
magnifications), (c) and (d) – cross section of the surface (different magnifications).
The chemical composition after etching is shown on Figure 9. Because during the
mechanical alloying some amount of powders strongly stick into the milling container ...