Effect of strain on corrosion resistance of 316L stainless steel as bipolar plates in PEMFC environment

Jinlong, Lv; Guo, Wei

doi:10.1016/j.ijhydene.2015.06.117

Cited by 31 publications

(3 citation statements)

References 26 publications

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“…The diffraction peaks at 2θ of 43.8°, 51.2°, and 74.8°, respectively, correspond to the (311), (400), and (440) crystal planes. Three prominent characteristic peaks were assigned to iron oxides (Fe 3 O 4 ) and iron chromium oxides (FeCr 2 O 4 ), [24,25] which are the main components of corrosion products on the SS304 surface.…”

Section: Corrosion Characteristics Of Sidewall Stainless Steelmentioning

confidence: 99%

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N₂O₄

Yao

Cao²,

et al. 2023

steel research int.

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In this work, the materials from different positions of 2219 aluminum alloy/304 stainless steel inertia friction welded tank with long‐term storage of N2O4 were studied. The results showed that the corrosion product layer composed of Fe3O4 and FeCr2O4 was covered on the surface of stainless steel. The corrosion product layer on the surface of stainless steel can effectively improve the protection effect. Severe corrosion occurred in both the sidewall and bottom aluminum alloy, with intergranular corrosion depths of about 30 to 50μm observed in the cross‐section, accompanied by typical exfoliation corrosion. A Fe‐Al dominated intermetallic compound layer was formed at the weld. A dynamic recrystallization zone and thermo‐mechnical affected zone were included on the aluminum alloy side with intergranular corrosion depths of 4.3 and 13.3μm, respectively. The granular Al matrix can be seen on the peeling surface of the aluminum alloy. Combining scanning Kelvin probe and potentiodynamic polarization curve results, the high potential of the stainless steel could further promote the corrosion of the aluminum alloy.This article is protected by copyright. All rights reserved.

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Section: Corrosion Characteristics Of Sidewall Stainless Steelmentioning

confidence: 99%

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N₂O₄

Yao

Cao²,

et al. 2023

steel research int.

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“…The bipolar plate material must be chemically stable, highly conductive and thermally conductive; With the advantages of low contact resistance with the substrate, good mechanical strength, low permeability, and low cost for mass production; Make the reactant gas distribution and product discharge uniform. It also needs to be light weight and small in size [11]. Graphite dominated the early applications, its large size, its permeability, the high cost of processing air channels and its brittleness were the biggest obstacles for this material, In view of the limitations of graphite substrate materials, many scholars have turned to metals as substrate materials for fuel cell bipolar plates.…”

Section: Bipolar Plate Metal Substrate Materialsmentioning

confidence: 99%

A Study on the Current status of Metal Bipolar Plate Materials and Stamping and Forming for Fuel Cells

Guo

Cunwu²,

Jiahao³

et al. 2022

JERR

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Bipolar plates are one of the most important components in fuel cell stacks and have multiple functions. Compared with composite materials, bipolar plates of metallic materials have superior electrical and thermal conductivity, good mechanical strength, high chemical stability, very wide choice of alloys, and coating techniques are employed to improve their corrosion resistance and reduce their bottom contact resistance. This paper investigates the selection of materials and stamping and forming of metal bipolar plates in the hope that this research can promote the development of metal bipolar plates for fuel cells. On this basis, we expect to innovate the material and fabrication process of metal bipolar plates, reduce their cost, and promote their commercialization.

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“…By studying the oxygen adsorption energies on Cu (100) as a function of the mechanical stress, Kramer et al reported that the surface oxidation was modified with an important role of the adsorbed species such as O ads involved in the construction of the oxide film. XPS analysis carried out on passive film formed on 316L in PEMFC environment showed that medium tensile strain promoted the presence of Cr 2 O 3 in the passive film . This phenomenon was due to a small amount of planar dislocations and to a large number of dislocation tangles which increase the diffusion of alloy elements.…”

Section: Introductionmentioning

confidence: 98%

Investigation of the passivation process of plastically deformed 316L stainless steel using the high frequency capacitance obtained by EIS

Boudinar¹,

Belmokre²,

Touzet

et al. 2018

Materials & Corrosion

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This paper was devoted to the study of changes of electrochemical processes (dissolution, passivation) induced by the plastic strain of a 316L austenitic stainless steel in a chloride acid solution (H2SO4 2 M + NaCl 0.5 M). For this purpose, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods have been used for various plastic strain values. In order to only assess the effect of internal stresses created by various dislocation configurations on the dissolution and passivation processes without considering the surface roughness impact, electrochemical experiments have been carried out after polishing the specimen surface. The obtained results show that the electrochemical parameters (corrosion current, activation current peak, high frequency capacitance) change with the increase of plastic strain with the same behavior as the work hardening phases of the material in relation to dislocation pattern.

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Effect of strain on corrosion resistance of 316L stainless steel as bipolar plates in PEMFC environment

Cited by 31 publications

References 26 publications

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N₂O₄

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N₂O₄

A Study on the Current status of Metal Bipolar Plate Materials and Stamping and Forming for Fuel Cells

Investigation of the passivation process of plastically deformed 316L stainless steel using the high frequency capacitance obtained by EIS

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Effect of strain on corrosion resistance of 316L stainless steel as bipolar plates in PEMFC environment

Cited by 31 publications

References 26 publications

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N2O4

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N2O4

A Study on the Current status of Metal Bipolar Plate Materials and Stamping and Forming for Fuel Cells

Investigation of the passivation process of plastically deformed 316L stainless steel using the high frequency capacitance obtained by EIS

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Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N₂O₄

Long‐Term Corrosion Behavior Study of Aluminum‐Alloy/Stainless‐Steel Inertia Friction–Welded Tank Storing N₂O₄