Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 May 24;6(5):e04039.
doi: 10.1016/j.heliyon.2020.e04039. eCollection 2020 May.

Multilayer corrosion-resistant material based on iron-carbon alloys

Vladimir A Grachev  1 , Andrey E Rozen  2 , Yury P Perelygin  2 , Sergey Yu Kireev  2 , Irina S Los  2
Affiliations

Multilayer corrosion-resistant material based on iron-carbon alloys

Vladimir A Grachev et al. Heliyon. .

Abstract

In this study, the architecture of a multilayer metallic material of iron-carbon alloys with an internal protector was developed based on theoretical studies. The operability of the proposed architecture was experimentally verified using gravimetry and electrochemical analysis. The internal position of the protector enabled the modification of the mechanism of corrosion. The stages of corrosion of the multilayer material were revealed; the material was observed as useable until the third layer was perforated. To demonstrate the obtained results, the authors conducted a set of experiments using X-ray microscopy and scanning electron microscopy with an electron probe analysis of the chemical composition. The cost of the developed material is within the same range as widely used corrosion-resistant stainless austenite steels; and in terms of corrosion resistance, this material is comparable to palladium, molybdenum, nickel, and Hastelloy.

Keywords: Corrosion; Electrochemical potential; Mass corrosion index; Materials science; Multilayer materials; Pitting; Protector.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Schematic view of corrosion in a four-layer material: 1 – external layer in contact with the working medium; 2 – internal protector; 3 – third layer; 4 – base layer; 5 – cavities in the protector; 6 – pits through which the aggressive medium interacts with the protector; and 7 – pits with retarded growth owing to the electrochemical effect of the protector.
Figure 2
Figure 2
Correlation of electrochemical potentials of steel 10 (line 1) and 08Kh18N10T (line 2) to the current strength (the potentials relate to a silver chloride electrode).
Figure 3
Figure 3
Cell with the sample during the determination of the protector active radius: 1 – high-resistance voltmeter; 2 – silver chloride reference electrode; 3 – cell; 4 – solution level; 5 – Steel 10; 6 – Steel 12Kh18N10T; and 7 – chemically inert supports.
Figure 4
Figure 4
1 – sample potential (E) of the multi-layer material (with reference to a silver chloride electrode) as a function of the distance (x) between the capillary of the electrode and the protector in a 0.5-M solution of sodium chloride; 2–4 – tangent lines.
Figure 5
Figure 5
Mass corrosion index of Steel 10 in contact with Steel 08Kh18N10T as a function of pH at 25 (curve 1) and 35 °C (curve 2).
Figure 6
Figure 6
Thickness of the diffusion layer (l) as a function of exposure time (τ) at various diameters (d) of the lens in the middle layer: 1 – lens, 2 – the third layer, 3 – the second layer (internal protector), 4 – the first layer, and 5 – corrosion medium.
Figure 7
Figure 7
3D visualization of the binary model of corrosion to a three-layer material with an internal protector (12Х18Н10Т + Steel 10 + 12Х18Н10Т) at (a) 72 h, (b) 168 h, and (c) 360 h in a 6% solution of iron (III) chloride.
Figure 8
Figure 8
(a) SEM image of the corrosion zone used to compose (b) a distribution profile of chemical composition in spots at the surface of the sample.
See this image and copyright information in PMC

References

    1. Elanskii G.N., Semin A.E., Paderin S.N., Shakhov S.I., Shevelev L.N. Results of 14th steelmakers congress. Metallurgist. 2017;1:29–45.
    1. Nemenov A.M. Events in figures and facts. Metallurgist. 2017;7:95–104.
    1. Pavlov A.A. Development of new corrosion-resistant bimetals with increased corrosion resistance prepared by electroslag surfacing technology. Chem. Petrol. Eng. 2017;53(7-8):551–556.
    1. Agarwal D.C. Nickel base alloys and newer 6Mo stainless steels meet corrosion challenges of the modern day chemical process industrie. Anti-Corros. Methods Mater. 2001;48(5):287–297.
    1. Kim Y.S., Park J.G., An B.S., Lee Y.H., Yang C.W., Kim J.G. Investigation of zirconium effect on the corrosion resistance of aluminum alloy using electrochemical methods and numerical simulation in an acidified synthetic sea salt solution. Materials. 2018;11(10):1982. - PMC - PubMed

LinkOut - more resources