Corrosion Behavior of 2205 Duplex Stainless Steels in HCl Solution Containing Sulfide

Tang, Junlei; Yang, Xi; Wang, Yingying; Wang, Hu; Xiao, Ying; Apreutesei, M.; Nie, Zhen; Normand, Bernard

doi:10.3390/met9030294

Cited by 15 publications

(15 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In addition, the housing material of HPD_NP is stainless steel while that of HPD_NS is Teflon. This might another reason why the HPD_NP revealed higher HCl loss than the HPD_NS, because the reaction of HCl solution and HCl gas with stainless steel causing corrosion was reported elsewhere [28,29], and the reaction of HCl gas is accelerated at higher temperature [28]. The lowest HCl loss rates were found at 80 • C for both devices in all conditions.…”

Section: Rh (%)mentioning

confidence: 84%

Effects of Humidity Pretreatment Devices on the Loss of HCl Gas Emitted from Industrial Stacks

et al. 2021

View full text Add to dashboard Cite

A high humidity at a high temperature presents a common challenge in monitoring the air pollutants emitted from stationary sources. Thus, humidity removal is a pivotal issue. In this study, the effect of humidity pretreatment devices (HPDs) on hydrogen chloride (HCl) gas emitted from an incinerator stack was investigated. A conventional cooler (HPD_CL), and poly-tube (HPD_NP) and single-tube (HPD_NS) Nafion™ dryers were used as HPDs in this study. HCl concentrations varied at five and 10 parts per million in volume (ppmv). Low (i.e., ~4%) and high (i.e., ~17%) humidities were generated at 180 °C. The removal efficiencies of humidity and the loss rates of HCl by the devices were determined. The removal efficiencies of humidity by HPD_CL and the two dryers were found to be similar, at approximately 85% at a low humidity and 95% at a high humidity. In terms of HCl loss rates, HPD_CL revealed the highest loss rates in all conditions (i.e., >95%), followed by HPD_NP and HPD_NS. At normal room temperature (i.e., 25 °C), the HCl loss rates of HPD_NP were >40% at a low humidity and >70% at a high humidity, while those of HPD_NS were >10% at a low humidity and >60% at a high humidity. The performance of the two dryers improved when they were heated to 80 °C. However, this temperature caused damage to the dryers, which reduced their lifetime.

show abstract

Section: Rh (%)mentioning

confidence: 84%

Effects of Humidity Pretreatment Devices on the Loss of HCl Gas Emitted from Industrial Stacks

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Though the Cl - in the solution has a strong detrimental effect on the passivating-ability of the steel film 83 . Therefore, the stability of the sample’s passive film would be reduced substantially 84 . It is also evident from Table 6 that the corrosion potentials ( E corr ) of welded joints with E1 electrodes seem to possess slight resistance to corrosion in the solution as compared to welded joints with E2 electrodes.…”

Section: Resultsmentioning

confidence: 99%

Mechanical properties and corrosion behaviour of duplex stainless steel weldment using novel electrodes

Omiogbemi

Yawas

Das

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Mechanical and corrosion properties of welded duplex stainless steel (DSS) structures are of paramount consideration in many engineering applications. The current research investigates the mechanical properties and corrosion integrity of duplex stainless-steel weldment in a simulated 3.5% NaCl environment using specially developed novel electrodes without the addition of alloying elements to the flux samples. Two different types of fluxes having basicity indexes of 2.40 and 0.40 were used to coat E1 and E2 electrodes respectively for DSS plate welding. The thermal stability of the formulated flux was evaluated using thermogravimetric analysis. The chemical composition, using optical emission spectroscopy, and the mechanical and corrosion properties of the welded joints were evaluated as per different ASTM standards. X-ray diffraction was used to find out the phases present in the DSS welded joints while a scanning electron equipped with EDS was used for microstructural examination of the weldments. The ultimate tensile strength of welded joints made using the E1 electrode was in the range of 715–732 MPa and that of the E2 electrode was found to be 606–687 MPa. The hardness was increased with increased welding current from 90 to 110 A. The welded joint with E1 electrode coated with basic flux has better mechanical properties. The steel structure in 3.5% NaCl environment possesses substantial resistance to corrosion attack. This validates the performance of the welded joints made by the newly developed electrode. The results are discussed on the basis of the depletion of alloying elements such as Cr and Mo observed from the weldments with the coated electrodes E1 and E2 as well as precipitation of the Cr2N in the welded joints made by E1 and E2 electrodes.

show abstract

“…Ion sulfides might form non-protective layers and agitate the anodic dissolution of steel [8]. When both sulfides and chloride were present, the protective layer would become more delicate to certain parameters such as temperature [9] and anion concentration [10]. Thus, ominously affecting its kinetic, the properties of the material and the corrosion rate of steel [7].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Localized Corrosion on Stainless Steel

Ismail

2022

ETN

View full text Add to dashboard Cite

This work examined the corrosion rates and surface morphologies of corrosion product films for 2205 DSS in extreme sour environment. The localized corrosion formed on 2205 DSS’s surface at different pH2S were highlighted to provide information for corrosion behaviour of 2205 DSS. The uniform corrosion rates were calculated by weight loss while the pitting rate were determined by using a profilometer, respectively. There are 3 conditions mode can be relating to H2S parameter, which is control condition (0 bar), aggressive condition (3 bar) and saturated condition (15 bar). The results illustrated that the passive films became more protective at saturated mode. Meanwhile pitting corrosion was dominated by 3 bar pH2S at aggressive mode. In addition, the XPS results found that increasing the pressure of H2S will improving the metal sulfides formation. Finally, corrosion behaviour and an evolution of element composition of 2205 DSS was then discussed.

show abstract

Corrosion Behavior of 2205 Duplex Stainless Steels in HCl Solution Containing Sulfide

Cited by 15 publications

References 52 publications

Effects of Humidity Pretreatment Devices on the Loss of HCl Gas Emitted from Industrial Stacks

Effects of Humidity Pretreatment Devices on the Loss of HCl Gas Emitted from Industrial Stacks

Mechanical properties and corrosion behaviour of duplex stainless steel weldment using novel electrodes

Analysis of Localized Corrosion on Stainless Steel

Contact Info

Product

Resources

About