journal article·2013-02

The effect of NaHCO3 treatment time on the corrosion resistance of commercial magnesium alloys AZ31 and AZ61 in 0.6M NaCl solution

Sebastián Feliu, Alejandro Samaniego, A.A. El-Hadad, Irene Llorente

Corrosion Science· Volume 67
Publisher page

Abstract

This paper studies the chemical composition and structure of the conversion coatings formed during immersion on saturated aqueous NaHCO3 solution treatment on the surface of as-received commercial AZ31 and AZ61 magnesium alloys with a view to a better understanding of their protective properties. The great uniformity and the significant increase in the amount of aluminium oxides and hydroxides observed on the surface of the conversion coating of the AZ61 alloy after 10 or 60min of treatment (about 30% higher Al atomic contents) seems to improve the corrosion resistance. © 2012 Elsevier Ltd.
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Research context

OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Hydrogen Storage and Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (48)

Show source-provided references
1. Correlation between the surface chemistry and the atmospheric corrosion of AZ31, AZ80 and AZ91D magnesium alloys10.1016/j.apsusc.2008.10.095 ↗
2. XPS study of the effect of aluminium on the atmospheric corrosion of the AZ31 magnesium alloys10.1002/sia.3004 ↗
3. Atmospheric corrosion of magnesium alloys AZ31 and AZ61 under continuous condensation conditions10.1016/j.corsci.2011.02.003 ↗
4. XPS study of the surface chemistry on AZ31 and AZ91 magnesium alloys in dilute NaCl solution10.1016/j.apsusc.2010.02.058 ↗
5. Improvement in stannate chemical conversion coatings on AZ91 D magnesium alloy using the potentiostatic technique10.1016/j.electacta.2007.08.015 ↗
6. Formation of Mg, Al-hydrotalcite conversion coating on Mg alloy in aqueous HCO3-/CO32- and corresponding protection against corrosion by the coating10.1016/j.corsci.2009.02.007 ↗
7. Enhancement of corrosion resistance of Mg-9wt% Al-1wt% Zn alloy by calcite (CaCO3) conversion hard coating10.1016/j.corsci.2010.01.014 ↗
8. Characterization of Mg, Al-hydrotalcite conversion film on Mg alloy and Cl− and CO32- anion-exchangeability of the film on a corrosive environment10.1016/j.scriptamat.2007.02.020 ↗
9. Comparative study of different environmentally friendly (Chromium-free) methods for surface modification of pure magnesium10.1016/j.surfcoat.2011.05.048 ↗
10. Chemical conversion treatments to protect biodegradable magnesium in applications as temporary implants for bone repair10.3989/revmetalm.0944 ↗
11. Hydrotalcite conversion coating on Mg alloys and its corrosion resistance10.1016/j.jallcom.2010.01.007 ↗
12. Crystallization of a chemical conversion layer that forms on AZ91D magnesium alloy in carbonic acid10.1016/j.corsci.2011.07.035 ↗
13. In situ growth of Mg–Al hydrotalcite conversion film on AZ31 magnesium alloy10.1016/j.corsci.2011.06.003 ↗
14. Surface modification of magnesium by NaHCO3 and corrosion behaviour in Hank’s solution for new biomaterial applications10.2320/matertrans.42.1777 ↗
15. Empirical atomic sensitivity factor for quantitative analysis by electron spectroscopy for chemical analysis10.1002/sia.740030506 ↗
16. The electrochemical corrosion of pure magnesium in 1N NaCl10.1016/S0010-938X(96)00172-2 ↗
17. Corrosion behaviour of AZ21, AZ501 and AZ91 in sodium chloride10.1016/S0010-938X(98)00078-X ↗
18. Influence of microstructure on the corrosion of diecast AZ91D10.1016/S0010-938X(98)00121-8 ↗
19. An XPS investigation of the oxidation/corrosion of melt-spun Mg10.1016/S0169-4332(99)00593-0 ↗
20. Oxidation of magnesium10.1002/sia.1346 ↗
21. Characterization of AZ91 magnesium alloy and organosilane adsorption on its surface10.1016/j.apsusc.2006.09.030 ↗
22. Corrosion resistance of zinc–magnesium coated steel10.1016/j.corsci.2007.03.032 ↗
23. Electrochemical reactivity, surface composition and corrosion mechanisms of the complex metallic alloy Al3Mg210.1016/j.corsci.2009.10.015 ↗
24. Effect of HCl pre-treatment on corrosion resistance of cerium-based conversion coatings on magnesium and magnesium alloys10.1016/j.corsci.2004.06.016 ↗
25. Study of molybdenum/lanthanum-based composite conversion coatings on AZ31 magnesium alloy10.1016/j.apsusc.2010.10.077 ↗
26. Microstructure and properties of oxalate conversion coating on AZ91D magnesium alloy10.1016/S1003-6326(09)60043-1 ↗
27. Molybdate/phosphate composite conversion coating on magnesium alloy surface for corrosion protection10.1016/j.apsusc.2008.04.095 ↗
28. Preparation and corrosion resistance studies of nanometric sol–gel-based CeO2 film with a chromium-free pretreatment on AZ91D magnesium alloy10.1016/j.electacta.2009.07.053 ↗
29. Conversion coating treatment for magnesium alloy by a permanganate–phosphate solution10.1016/S0254-0584(02)00481-9 ↗
30. Structure and formation mechanism of phosphate conversion coating on die-cast AZ91D magnesium alloy10.1016/j.corsci.2007.08.007 ↗
31. Effect of naturally formed oxide films and other variables in the early stages of Mg-alloy corrosion in NaCl solution10.1016/j.electacta.2011.02.077 ↗
32. Electrochemical polarization: I. A theoretical analysis of the shape of polarization curves10.1149/1.2428496 ↗
33. Formation and characterization of a chromate conversion coating on AA6060 aluminium10.1016/j.corsci.2004.08.012 ↗
34. Electroless Ni–P deposition on AZ91D magnesium alloy prepared by molybdate chemical conversion coatings10.1149/1.3040243 ↗
35. Effect of the chemistry and structure of the native oxide surface film on the corrosion properties of commercial AZ31 and AZ61 alloys10.1016/j.apsusc.2011.05.014 ↗
36. Pourbaix · 1966
37. Corrosion protection of magnesium alloys by cerium, zirconium and niobium-bases coatings10.1016/j.corsci.2008.03.015 ↗
38. Morphological and microstructural characterization of the aragonitic CaCO3/Mg, Al-hydrotalcite coating on Mg-9Wt Pct Al-1Wt Pct Zn alloy to protect against corrosion10.1007/s11661-008-9669-0 ↗
39. The corrosion of pure magnesium in aerated and deaerated sodium sulphate solution10.1016/S0010-938X(00)00095-0 ↗
40. Initial surface film on magnesium metal: a characterization by X-ray photoelectron spectroscopy (XPS) and photocurrent spectroscopy (PCS)10.1016/j.electacta.2007.03.019 ↗
41. Influence of microstructure and composition on the corrosion behavior of Mg/Al alloys in chloride media10.1016/j.electacta.2008.06.001 ↗
42. The influence of carbon dioxide on the atmospheric corrosion of some magnesium alloys in the presence of NaCl10.1149/1.1452115 ↗
43. Calculated phase diagrams and the corrosion of die-cast Mg–Al alloys10.1016/j.corsci.2008.12.015 ↗
44. Morphology and structure of oxide films formed on MgAl alloys by exposure to air and water10.1149/1.1837048 ↗
45. Corrosion behaviour of magnesium/aluminium alloys in 3.5wt% NaCl10.1016/j.corsci.2007.11.005 ↗
46. The initial steps of atmospheric corrosion on magnesium alloy AZ91D10.1149/1.2779957 ↗
47. Formation and breakdown of surface films on magnesium and its alloys in aqueous solutions10.1016/j.corsci.2006.05.033 ↗
48. A TEM investigation of naturally formed oxide films on pure magnesium10.1016/S0010-938X(97)00037-1 ↗