Improvement of Corrosion Resistance of Stainless Steel Welded Joint Using a Nanostructured Oxide Layer

Heo, Jun Neoung; Lee, Sang Yoon; Lee, Jae Woo; Alfantazi, Akram; Cho, Sung Oh

doi:10.3390/nano11040838

Cited by 6 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A characteristic austenite γ-phase iron is responsible for the three predominant peaks observed at 43.5°(111), 50.79°(200), and 74.7°( 220). 31,43 In addition, a small intensity peak has been observed in a two-step surface-treated SS sample (Figure 2B) between 20 and 40 degrees, congruent with the Fe 2 O 3 (hematite) phase of Iron oxide (ICDD 01-080-5407). This study indicates that deeper oxides on the surface of stainless steel can be formed through a two-step anodic approach.…”

Section: Structure Composition and Morphology Ofmentioning

confidence: 99%

Self-Ordered Anodic Porous Oxide Layers as a High Performance Electrocatalyst for Water Oxidation

Bose,

Suryaprakash Goud,

Helal

et al. 2024

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

During electrochemical water splitting, the oxygen evolution reaction (OER) is one of the significant steps with the maximum incredible limiting effects on efficiency, primarily due to the high overpotentials associated with the materials utilized on the anode side. Herein, we present a simple two-step surface modification performed on a general-purpose austenitic stainless steel (SS 304) composed of the earth-abundant metals Fe, Cr, and Ni. The modification is highly likely of thin porous oxide layers that significantly improve water oxidation performance in a strongly alkaline medium. Furthermore, the oxide layer formed by the two-step surface treatment of stainless steel provides a stable outer layer. It is inert to long-term operations in an alkaline environment, demonstrated by consistent OER performance after 2000 CV cycles and 24 h of chronopotentiometric testing. This electrolyzer, especially surface-treated stainless steel, could be a game-changer in creating efficient and affordable catalysts for alkaline water electrolyzer systems. It offers cost-effective solutions with comparative electrocatalytic capabilities. Its production can be scaled up for widespread use.

show abstract

Section: Structure Composition and Morphology Ofmentioning

confidence: 99%

Self-Ordered Anodic Porous Oxide Layers as a High Performance Electrocatalyst for Water Oxidation

Bose,

Suryaprakash Goud,

Helal

et al. 2024

ACS Appl. Energy Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…They found that the anodic films were not formed in the glycerol solution when the H 2 O concentration exceeded 3 vol% due to the anodic layers presenting higher chemical dissolution rate than oxide formation rate. Since then, the influence of some parameters on the formation of anodic layers on SS has been reported [ 22 , 23 , 24 , 25 ], while only a few researchers have analyzed its electrochemical behavior against corrosion [ 14 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Growth of Anodic Layers on 304L Stainless Steel Using Fluoride Free Electrolytes and Their Electrochemical Behavior in Chloride Solution

Domínguez-Jaimes

Arenas²,

Conde³

et al. 2022

Materials

View full text Add to dashboard Cite

Anodic layers have been grown on 304L stainless steel (304L SS) using two kinds of fluoride-free organic electrolytes. The replacement of NH4F for NaAlO2 or Na2SiO3 in the glycerol solution and the influence of the H2O concentration have been examined. The obtained anodic layers were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and potentiodynamic polarization tests. Here, it was found that, although the anodic layers fabricated within the NaAlO2-electrolyte and high H2O concentrations presented limited adherence to the substrate, the anodizing in the Na2SiO3-electrolyte and low H2O concentrations allowed the growth oxide layers, and even a type of ordered morphology was observed. Furthermore, the electrochemical tests in chloride solution determined low chemical stability and active behavior of oxide layers grown in NaAlO2-electrolyte. In contrast, the corrosion resistance was improved approximately one order of magnitude compared to the non-anodized 304L SS substrate for the anodizing treatment in glycerol, 0.05 M Na2SiO3, and 1.7 vol% H2O at 20 mA/cm2 for 6 min. Thus, this anodizing condition offers insight into the sustainable growth of oxide layers with potential anti-corrosion properties.

show abstract

Investigating the impact of post-weld cleaning and passivation on the performance of austenitic stainless steel using an EIS paste-electrolyte cell

Bera,

Bašurić,

Šoić

et al. 2024

J Solid State Electrochem

View full text Add to dashboard Cite

Improvement of Corrosion Resistance of Stainless Steel Welded Joint Using a Nanostructured Oxide Layer

Cited by 6 publications

References 49 publications

Self-Ordered Anodic Porous Oxide Layers as a High Performance Electrocatalyst for Water Oxidation

Self-Ordered Anodic Porous Oxide Layers as a High Performance Electrocatalyst for Water Oxidation

Growth of Anodic Layers on 304L Stainless Steel Using Fluoride Free Electrolytes and Their Electrochemical Behavior in Chloride Solution

Investigating the impact of post-weld cleaning and passivation on the performance of austenitic stainless steel using an EIS paste-electrolyte cell

Contact Info

Product

Resources

About