Effect of cold deformation on corrosion behavior of selective laser melted 316L stainless steel bipolar plates in a simulated environment for proton exchange membrane fuel cells

Ma, Jiawei; Zhang, Baicheng; Fu, Yu; Hu, Xiaojun; Cao, Xinfeng; Pan, Zhimin; Ya, Wei; Luo, Hong; Li, Yong

doi:10.1016/j.corsci.2022.110257

Cited by 75 publications

(16 citation statements)

References 85 publications

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“…For SS316, it has four constituent peaks of metallic Fe 0 (706.8 eV), Fe 3 O 4 (707.8 eV), FeO (709.1 eV), and FeOOH (711.3 eV). − In FeMG, it contains only Fe 0 and FeOOH, and their intensities are low. Iron oxides and hydroxides are usually found in the outer layer of the passive film of stainless steel . In comparison, the iron content in FeMG is not very high.…”

Section: Resultsmentioning

confidence: 99%

A Novel Fe-Based Metallic Glass as the Bipolar Plate for Proton Exchange Membrane Fuel Cells

Su,

Zhang,

Zhang

et al. 2024

Ind. Eng. Chem. Res.

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A novel metallic glass, Fe50Cr18Mo10C20Si2 (FeMG), is developed and proposed as a potential bipolar plate for proton exchange membrane fuel cells. Its metallic glass nature ensures that there is an oversaturation of Cr and Mo in the substrate and that a stable Cr–Mo–C-rich passive film forms with fewer defects. Therefore, FeMG shows higher impedance, higher stability, higher corrosion resistance, and a lower ion dissolution rate than SS316 during immersion and electrochemical tests. A comparison with Ti-based alloys, stainless steels, and other metallic glasses clearly shows that the novel FeMG has outstanding corrosion resistance and low cost, indicating its great potential for commercialization.

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Section: Resultsmentioning

confidence: 99%

A Novel Fe-Based Metallic Glass as the Bipolar Plate for Proton Exchange Membrane Fuel Cells

Su,

Zhang,

Zhang

et al. 2024

Ind. Eng. Chem. Res.

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“…The Mott–Schottky curve is an important method to study the semiconductor properties of passive film [ 40 ]. Researchers [ 41 , 42 ] have studied the corrosion behavior study of stainless steel using the Mott–Schottky curve. They found that the passive film indicated n-type semiconductor properties with high enough electrode potential.…”

Section: Resultsmentioning

confidence: 99%

Effect of Shot Peen Forming on Corrosion-Resistant of 2024 Aluminum Alloy in Salt Spray Environment

et al. 2022

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The effect of shot peen forming on the corrosion-resistant of 2024 aluminum alloy in a salt spray environment was studied with an electrochemical workstation. The surface morphology and cross sectional morphology of the original and shot peen-formed sample were studied by a scanning electron microscope. After shot peen forming, the salt spray corrosion resistance of 2024 aluminum alloy was worsened (the corrosion rates of the original alloy and the shot peen-formed alloy were 0.10467 mg/(cm2×h) and 0.27333 mg/(cm2×h), respectively, when the salt spray corrosion time was 5 h). The radius of capacitive reactance arc of the sample subjected to shot peen forming was smaller than that of the original sample. When the salt spray corrosion time was 5 h, the doping density (NA) of the original alloy was 2.5128 ´ 10−13 /cm3. After shot peen forming, the NA of the alloy increased to 15 ´ 10−13 /cm3. For the shot peen-formed sample, pitting corrosion first occurred in the crater lap zone and became severe with salt spray time. The cross sectional morphology of both original and the shot peen-formed samples shows that severe intergranular corrosion occurred in the salt spray environment. However, for the original sample, the intergranular corrosion distribution was lamellar. For shot peen-formed sample, the intergranular corrosion distribution was network.

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“…However, at a higher deformation level of 70 %, the martensite nucleation diminished the passive film stability. [42] A study on the influence of plastic strain on corrosion behaviours demonstrated that the 316 L SS is passive in the simulated CE; the highest corrosion resistance was recorded for 20 % plastic strain. The Cr 2 O 3 level in the passive film was maximum at this strain rate.…”

Section: Stainless Steelsmentioning

confidence: 99%

Corrosion and Materials Degradation in Electrochemical Energy Storage and Conversion Devices

Saji

2023

ChemElectroChem

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Research and development on electrochemical energy storage and conversion (EESC) devices, viz. fuel cells, supercapacitors and batteries, are highly significant in realizing carbon neutrality and a sustainable energy economy. Component corrosion/ degradation remains a major threat to EESC device's long-term durability. Here, we provide a comprehensive account of the EESC device's corrosion and degradation issues. Discussions are mainly on polymer electrolyte membrane fuel cells, metal-ion and metal-air batteries and supercapacitors. Corrosion of bipolar plates/current collectors, carbon corrosion, electrode/ electrocatalyst degradation, and various mitigation approaches are detailed. The collective information provided could help develop EESC devices with better durability.

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Effect of cold deformation on corrosion behavior of selective laser melted 316L stainless steel bipolar plates in a simulated environment for proton exchange membrane fuel cells

Cited by 75 publications

References 85 publications

A Novel Fe-Based Metallic Glass as the Bipolar Plate for Proton Exchange Membrane Fuel Cells

A Novel Fe-Based Metallic Glass as the Bipolar Plate for Proton Exchange Membrane Fuel Cells

Effect of Shot Peen Forming on Corrosion-Resistant of 2024 Aluminum Alloy in Salt Spray Environment

Corrosion and Materials Degradation in Electrochemical Energy Storage and Conversion Devices

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