Electrochemical and chemical corrosion behaviors of the in-situ Zr-based metallic glass matrix composites in chloride-containing solutions

Review on Biocompatibility and Prospect Biomedical Applications of Novel Functional Metallic Glasses

“…and standard environments of 0.6 mol/dm 3 NaCl, 1 mol/dm 3 HCl, 1 mol/dm 3 H 2 SO 4 [ 44 ] and 0.1 mol/dm 3 NaCl combined with 10g/dm 3 lactic acid [ 46 ]. The identified corrosion protection mechanism is connected with oxides layers formation on the surface of the Zr-based materials [ 30 , 32 , 61 , 62 , 63 , 64 ]. Cumulatively, the research showed excellent corrosion resistance of Zr-based metallic glasses, typically better than for pure Ti and Ti-based alloys.…”

“…However, their passive region width often tends to be low [ 47 ] for example in comparison with crystalline Ti-based alloys [ 40 , 43 , 45 , 46 , 48 , 49 ], which can result in pitting corrosion and is visible in Figure 4 as a sudden increase in current density with more positive polarization. The susceptibility of Zr-based metallic glasses to pitting corrosion in chloride-containing solutions [ 64 ], such as body fluids, is one of the main concerns related to their corrosion resistance aspect. As human cell membrane potential can reach about 0.1 V, it can stimulate the electrochemical corrosion of implants with low pitting corrosion resistance [ 65 , 66 , 67 ].…”

Improving the wear performance of a commercial Vit 1 amorphous alloy by a cryogenic cycling treatment

“…9. One can see that the XPS spectrum analysis results seem to be almost the same, both of them contained Zr 3d, Ti 2p, Cu 2p, Ni 2p, O 1 s, Cr 2p and Fe 2p spectra [34], and the binding energy corresponding to the peak of each element spectrum is basically the same. From the above results, it seems that the wear products on the surfaces of C0 and C30 samples are basically the same, but there are differences in the results of the narrow spectrum analysis; further discussion in given in ''Plasticization vs. wear performance'' section.…”

“…As shown in Fig. 10a and b, it can be found that although there are Fe 2p and O 1 s spectra on the wear scar surface of the C0 and C30 samples, a comparison shows that the relative peak signal intensities of Fe 2p and O 1 s of C30 sample are significantly stronger than that of C0 sample, indicating that more drastic Fe transfer and oxidation phenomenon occurred on the wear scar of C30 sample [34]. Moreover, it can be found that there are two peaks on the oxygen spectrum of C0 and C30 samples (Fig.…”

“…The binding energies at two sepparated peaks are about 185.5 eV and 183.1 eV, which should be corresponds to the Zr 4? state, i.e., the ZrO 2 [34]. In addition, the peaks at 182.2 eV and 179.1 eV should correspond to the metallic state (Zr 0 ) peaks.…”