was consistent with other studies using the same steel deposited
using an electric arc (Edrisy, Perry et al., 2001). Furthermore, the
560AS sample showed the BCC alpha iron structure with chromium
as a solution with compositions (CrFe4 Cr1.07Fe18.93
Cr0.03Fe0.97 Cr1.36Fe0.52) randomly distributed in planes (110)
(200) (211) (220), thereby agreeing with other studies (Jin, Xu et
al. 2007). These signals’ intensity decreased when 140 MXC wire
was added to the coating, due to amorphous formation.
Figure 3 shows the coatings’ potentiodynamic polarisation curves
and those for the substrate. This illustrates the points corresponding
to the calculated potential and corrosion current for
each curve. The polarisation curves overlapped for the MXC 140
sample and the bilayers, which may have indicated that the electrolyte
only interacted chemically with the surface of the coating,
with little diffusion through its thickness. It can also be observed
that the 560AS and 530AS coatings increased the corrosion
current when they were simultaneously deposited with the
140MXC wire. However, the effect was the opposite in the