2018
DOI: 10.1016/j.apsusc.2018.07.122
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Combined effect of pH and H2S on the structure of passive film formed on type 316L stainless steel

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Cited by 67 publications
(34 citation statements)
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“…When rare earth oxides were added, the capacitive loop significantly increased, and the total resistance at the lowest frequency also increased, indicating that the corrosion resistance of the 316L stainless steel was improved by laser cladding, especially when CeO 2 was added. Since passive film can easily form on the surface of 316L stainless steel [27][28][29], the equivalent circuit shown in Figure 8 was used to fit the EIS spectra, where Q is the film capacitance, R p is the polarization resistance, and R s is the solution resistance. ZsimpWin V3.30 software was used for EIS spectra fitting, and the fitting dependency was >90%.…”
Section: Hardness Measurementsmentioning
confidence: 99%
“…When rare earth oxides were added, the capacitive loop significantly increased, and the total resistance at the lowest frequency also increased, indicating that the corrosion resistance of the 316L stainless steel was improved by laser cladding, especially when CeO 2 was added. Since passive film can easily form on the surface of 316L stainless steel [27][28][29], the equivalent circuit shown in Figure 8 was used to fit the EIS spectra, where Q is the film capacitance, R p is the polarization resistance, and R s is the solution resistance. ZsimpWin V3.30 software was used for EIS spectra fitting, and the fitting dependency was >90%.…”
Section: Hardness Measurementsmentioning
confidence: 99%
“…Two deconvolution signals were observed, attributed to Fe 3 O 4 (710.1 eV) and FeS (712.8 eV). From the reactivity series, Fe was more active than Ni and could participate in the passive film formation in the form of Fe 3 O 4 , Fe 2 O 3 , Fe(OH) 2 , FeOOH, and Fe(OH) 3 [ 13 ]. However, iron sulfide (FeS) also appeared in the film due to the high affinity of sulfides with iron in the H 2 S solution [ 14 ].…”
Section: Resultsmentioning
confidence: 99%
“…Na literatura, nos últimos anos, pesquisadores concentraram suas linhas de pesquisa em como meios contendo H 2 S atuam na camada passiva de diversas ligas metálicas como 316L [8], super duplex [9], e o Super 13Cr [10].…”
Section: Introductionunclassified
“…Em 2018, Wang et al [8] estudaram o efeito combinado do valor de pH e H 2 S na estrutura do filme passivo em uma liga de aço inoxidável 316L. Através de análises de XPS e ToF-SIMS, os autores mostraram que a presença de H 2 S dissolvido no meio induz a incorporação de sulfetos de ferro na estrutura do filme passivo e que a camada passiva adquiriu uma disposição dividida em três regiões, uma externa rica em hidróxidos de ferro, níquel e cromo, uma região intermediária composta de sulfetos de ferro e um região interna onde predominaram os óxidos de cromo e ferro.…”
Section: Introductionunclassified
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