XPS investigations on the corrosion mechanism of V(IV) conversion coatings on hot-dip galvanized steel

Gao, Zhiqiang; Zhang, Dawei; Jiang, Sheming; Zhang, Qifu; Li, Yong

doi:10.1016/j.corsci.2018.04.030

Cited by 38 publications

(12 citation statements)

References 59 publications

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“…The enhanced corrosion resistance was ascribed to the formation of closely packed particles on the steel surface, consisting of V 2 O 5 , VO 2 oxides and the corresponding hydrates. A similar conversion coating based on vanadyl oxalate (VOC 2 O 4 ) was developed by Gao et al 50 . After the conversion process, a vanadate oxide layer was formed on the hot-dip galvanized steel substrate, which provided cathodic inhibition to the substrate.…”

Section: Discussionmentioning

confidence: 99%

Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I

et al. 2020

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This study explores the corrosion interactions between a metallic canister material, stainless steel (SS) 316, and an I-bearing ceramic waste form, lead vanado-iodoapatite (I-APT, Pb 9.85 (VO 4) 6 I 1.7), in a chloride solution. Crevice corrosion of the SS in close proximity to the I-APT resulted in the development of an aggressive environment at the interface of the two materials, which was acidic and enriched in Cl − anions. I-APT also corroded in the crevice region, primarily through ion-exchange between the I − ions from the I-APT matrix and anions from the environment. The enrichment of Cl − anions within the occluded crevice space as the result of SS crevice corrosion enhanced the corrosion of I-APT. The release of iodine from this apatite waste form could be accelerated owing to this mechanism. This is evidenced by a depletion of iodine from the I-APT matrix and a large amount of Cl-bearing precipitates on the surfaces of both SS and I-APT. On the other hand, the corrosion of I-APT leads to the precipitation of a V-and Pb-rich layer, which inhibits the localized corrosion of SS to an extent. This study advances the understanding of the near-field corrosion interactions between metallic canisters and ceramic waste forms.

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Section: Discussionmentioning

confidence: 99%

Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I

et al. 2020

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“…Vanadates have been considered as effective corrosion inhibitors to suppress the corrosion of Zn in aqueous solution [ 54 , 55 ]. Meanwhile, vanadate conversion coatings have been widely applied on the surface of Zn or HGD steel for the sake of corrosion protection [ [56] , [57] , [58] ]. It is claimed that the corrosion inhibitory effect is possibly attributed to the existence of the +4/+5 mixed oxidation state of the conversion coatings [ 59 ].…”

Section: Brief Review On Industrial Zn Alloys and Their Surface Modification Methodsmentioning

confidence: 99%

A review on current research status of the surface modification of Zn-based biodegradable metals

Yuan

Xia

et al. 2022

Bioactive Materials

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Recently, zinc and its alloys have been proposed as promising candidates for biodegradable metals (BMs), owning to their preferable corrosion behavior and acceptable biocompatibility in cardiovascular, bone and gastrointestinal environments, together with Mg-based and Fe-based BMs. However, there is the desire for surface treatment for Zn-based BMs to better control their biodegradation behavior. Firstly, the implantation of some Zn-based BMs in cardiovascular environment exhibited intimal activation with mild inflammation. Secondly, for orthopedic applications, the biodegradation rates of Zn-based BMs are relatively slow, resulting in a long-term retention after fulfilling their mission. Meanwhile, excessive Zn 2+ release during degradation will cause in vitro cytotoxicity and in vivo delayed osseointegration. In this review, we firstly summarized the current surface modification methods of Zn-based alloys for the industrial applications. Then we comprehensively summarized the recent progress of biomedical bulk Zn-based BMs as well as the corresponding surface modification strategies. Last but not least, the future perspectives towards the design of surface bio-functionalized coatings on Zn-based BMs for orthopedic and cardiovascular applications were also briefly proposed.

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“…XPS is employed to determine the substances and elemental composition on the corroded surface. [36][37][38] The model of the employed instrument for XPS analysis is Thermo Fisher ESCALAB Xi+. The XPS data are processed by Avantage 5.979, which is provided by the Surface Science Instruments XPS system.…”

Section: Characterization Methodsmentioning

confidence: 99%

A study on corrosion mechanism of 15CrMo in saline (Na₂SO₄) steam at high temperature

Bai

Deng

Che

2022

Materials & Corrosion

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To clarify the corrosion mechanism of 15CrMo in saline (Na 2 SO 4 ) steam, the experiments were conducted on a novel setup. The samples were analyzed by scanning electron microscope and X-ray photoelectron spectroscopy. The results indicate that insoluble sulfide, Fe x S y , would form on the gas-phase corroded surface while it would not occur on the liquid-phase corroded surface.The salinity of water/steam has a destructive effect on hydrogen bonds. Compared with deionized steam/water, salinity accelerates the corrosion of steel in two ways electric current intensification in primary cell and energy promotion of the solution system. FeOOH does not change obviously with the increase of salt concentration. The relative variation values of FeOOH content with salt concentration are only 2.43% (gas) and 3.40% (liquid), respectively. Besides, the FeOOH content on the liquid-phase corroded surface is much greater than that on the gas-phase corroded surface regardless of the salt concentration.

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XPS investigations on the corrosion mechanism of V(IV) conversion coatings on hot-dip galvanized steel

Cited by 38 publications

References 59 publications

Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I

Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I

A review on current research status of the surface modification of Zn-based biodegradable metals

A study on corrosion mechanism of 15CrMo in saline (Na₂SO₄) steam at high temperature

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XPS investigations on the corrosion mechanism of V(IV) conversion coatings on hot-dip galvanized steel

Cited by 38 publications

References 59 publications

Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I

Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I

A review on current research status of the surface modification of Zn-based biodegradable metals

A study on corrosion mechanism of 15CrMo in saline (Na2SO4) steam at high temperature

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Product

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A study on corrosion mechanism of 15CrMo in saline (Na₂SO₄) steam at high temperature