The metastable pitting corrosion of 2205 duplex stainless steel under bending deformation

Hou, Yan; Zhao, Jie; Cheng, Chuan; Zhang, Lei; Li, Jian; Liu, Baojun; Cao, Tieshan

doi:10.1016/j.jallcom.2020.154422

Cited by 42 publications

(20 citation statements)

References 50 publications

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“…Figure 4B shows the variations of R p values of the HEA coupons in the sterile and P. aeruginosa -inoculated medium during 14 days of immersion. In the sterile medium, the R p values maintained an upward trend during the whole immersion period, and only recovered rapidly after a drop between the 4th and 7th days, which may be caused by the rapid repair of the passive film after metastable pitting corrosion ( Hou et al, 2020 ; Zhu et al, 2022 ). In the P. aeruginosa -inoculated medium, R p values were much lower than that in sterile medium during the 14-day immersion.…”

Section: Resultsmentioning

confidence: 96%

Microbiologically influenced corrosion of FeCoNiCrMn high-entropy alloys by Pseudomonas aeruginosa biofilm

et al. 2022

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Pseudomonas aeruginosa is widely found in industrial water and seawater. Microbiologically influenced corrosion (MIC) caused by P. aeruginosa is a serious threat and damage to the safe service of steel materials. In this study, the MIC behavior of FeCoNiCrMn high-entropy alloy (HEA) by P. aeruginosa biofilm was investigated in the simulated marine medium. The maximum pitting depth of the HEA coupons in the P. aeruginosa-inoculated medium was ~4.77 μm, which was 1.5 times that in the sterile medium. EIS and potentiodynamic polarization results indicated that P. aeruginosa biofilm reduced the corrosion resistance of the passive film of HEA coupons and promoted its anodic dissolution process. XPS and AES results further demonstrated that P. aeruginosa interfered with the distribution of elements in the passive film and significantly promoted the dissolution of Fe.

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Section: Resultsmentioning

confidence: 96%

Microbiologically influenced corrosion of FeCoNiCrMn high-entropy alloys by Pseudomonas aeruginosa biofilm

et al. 2022

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“…Duplex stainless steel (DSS) composed of both austenite (γ) and ferrite (α) has a combination of excellent corrosion resistance and mechanical strength, which is used for petroleum, nuclear and chemical industries [1]. Duplex Stainless Steels 2205 (DSS 2205), as the third generation of duplex stainless steel [2], compared with the latest DSS (LDX 2404 lean duplex stainless steel), has superior local corrosion resistance [3], and is widely used in the structural parts of coastal building, bridge and offshore platform because the excellent pitting corrosion and intergranular corrosion resistance [4][5][6]. For the complex structural parts of duplex stainless steel, welding is probably the most common joining method.…”

Section: Introductionmentioning

confidence: 99%

Influence of Shielding Gas on Microstructure and Properties of GMAW DSS2205 Welded Joints

et al. 2021

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In the present study, the microstructures and properties of DSS 2205 solid wire MIG welded samples prepared in different shielding gases (pure Ar gas, 98%Ar + 2%O2 and 98%Ar + 2%N2) were investigated for improving the weldability of DSS 2205 welded joint. The work was conducted by mechanical property tests (hardness and tensile test) and corrosion resistance property tests (immersion and electrochemical tests). The results show that adding 2%O2 into pure Ar gas as the shielding gas decreases crystal defects (faults) and improves the mechanical properties and corrosion resistance of the welded joints. Phase equilibrium and microstructural homogeneity in welded seam (WS) and heat-affected zone (HAZ) can be adjusted and the strength and corrosion resistance of welded joints increased obviously by adding 2%N2 to pure Ar gas as the shielding gas. Compared with DSS 2205 solid wire MIG welding in 98%Ar + 2%O2 mixed atmosphere, the strength and corrosion resistance of welded joints are improved more obviously in 98%Ar + 2%N2 mixed atmosphere.

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“…At the moment, creative effective, locally sourced, commercially viable, and ecologically acceptable inhibitors are critical for resolving problem of corrosion occurred in the metallic industry. [21][22][23][24] Corrosion inhibitors are chemical compounds that aid in the production of a more resistant oxide coating on surface of the metal. [25][26][27][28] The effectiveness of these compounds as inhibitors is largely determined by their structure and the type of the adsorbed layer on surface of the metal.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Phthalazinones with Amino or Hydrazide Moiety as Corrosion Inhibitors of Low Carbon Steel in 0.5 M H₂SO₄

et al. 2021

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4-(4-methoxy-3-methyl-5 amino phenyl)-1(2H)-phthalazinone (APP), and [4-(4-mehoxy-3-methyl phenyl)-1-oxo-1H-phthalaz-2yl]acetic acid hydrazide (PPH) were synthesized as a novel independently corrosion inhibitor for carbon steel in 0.5 M H 2 SO 4 . Nuclear magnetic resonance, Fourier transform infrared and mass spectroscopy were used to validate the structure of the two anticorrosion compounds. The corrosion rate was studied by electrochemical methods (electrochemical impedance spectroscopy and potentiodynamic polarization) and gravimetric techniques, which clarify that the average corrosion inhibition efficiency of APP and PPH are 86 and 89 %, respectively. Impedance measurements showed that corrosion processes on the surface of LCS are controlled by a charge transfer mechanism. The PPH compound has a greater inhibitory effect on corrosion of low carbon steel. The quantum chemical calculations of APP and PPH were studied using AM1, PM3, and DFT/B3LYP/31G. Moreover, both APP and PPH acted as mixed type corrosion inhibitors. Adsorption of APP and PPH on low carbon steel (LCS) surface was physisorption and best fit to Langmuir isotherm.

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The metastable pitting corrosion of 2205 duplex stainless steel under bending deformation

Cited by 42 publications

References 50 publications

Microbiologically influenced corrosion of FeCoNiCrMn high-entropy alloys by Pseudomonas aeruginosa biofilm

Microbiologically influenced corrosion of FeCoNiCrMn high-entropy alloys by Pseudomonas aeruginosa biofilm

Influence of Shielding Gas on Microstructure and Properties of GMAW DSS2205 Welded Joints

Synthesis of Phthalazinones with Amino or Hydrazide Moiety as Corrosion Inhibitors of Low Carbon Steel in 0.5 M H₂SO₄

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The metastable pitting corrosion of 2205 duplex stainless steel under bending deformation

Cited by 42 publications

References 50 publications

Microbiologically influenced corrosion of FeCoNiCrMn high-entropy alloys by Pseudomonas aeruginosa biofilm

Microbiologically influenced corrosion of FeCoNiCrMn high-entropy alloys by Pseudomonas aeruginosa biofilm

Influence of Shielding Gas on Microstructure and Properties of GMAW DSS2205 Welded Joints

Synthesis of Phthalazinones with Amino or Hydrazide Moiety as Corrosion Inhibitors of Low Carbon Steel in 0.5 M H2SO4

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Synthesis of Phthalazinones with Amino or Hydrazide Moiety as Corrosion Inhibitors of Low Carbon Steel in 0.5 M H₂SO₄