High temperature oxidation of Co-W electroplated type 430 stainless steel for the interconnect of solid oxide fuel cells

2018 ◽  
Vol 134 ◽  
pp. 162-168 ◽  
Author(s):  
Lu Gan ◽  
Hideyuki Murakami ◽  
Isao Saeki
Keyword(s):  
Stainless Steel ◽  
Fuel Cells ◽  
High Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Temperature Oxidation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Oxidation Of Co ◽  
Temperature Oxidation ◽  
430 Stainless Steel

High-Temperature Oxidation of AISI441 Ferritic Stainless Steel for Solid Oxide Fuel Cells

2021 ◽  
Vol 1016 ◽  
pp. 1381-1385
Author(s):  
Roberto Spotorno
Keyword(s):  
Stainless Steel ◽  
Fuel Cells ◽  
Weight Gain ◽  
High Temperature ◽  
Solid Oxide Fuel Cells ◽  
Ferritic Stainless Steel ◽  
High Temperature Oxidation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Temperature Oxidation

Several ferritic stainless steel grades are widely studied and used in solid oxide fuel cells (SOFCs) technology as interconnect materials. Their high-temperature oxidation behavior is interesting to evaluate their applicability at SOFCs operating conditions and to design degradation tests and models predicting the lifetime of a SOFC stack. In this work the AISI441 grade was oxidized in static air at 850°C to study its oxidation kinetic by weight gain measurements. It was found a parabolic growth with a rate constant of 9.42 x 10-14 g2cm-4s-1. Data calculated using the diffusion coefficients of the species involved in the oxidation process resulted in higher weight gain. Discrepancies between the measurements and the model were corrected taking into account the chromium volatilization.

Electroplating Ni-doped Mn-Co films on AISI 430 stainless steel as interconnects in solid oxide fuel cells (SOFC)

2017 ◽  
Vol 59 (11-12) ◽  
pp. 951-956 ◽  
Author(s):  
Worapan Kanyarat ◽  
Piyapon Limprapard ◽  
Thamrongsin Siripongsakul ◽  
Somrerk Chandra-ambhorn ◽  
Patama Visuttipitukul ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
430 Stainless Steel ◽  
Aisi 430

Improving anti-oxidation performance of 430 SS by fabricating co-contained spinel coating as solid oxide fuel cells interconnect

2018 ◽  
Vol 65 (6) ◽  
pp. 547-557 ◽  
Author(s):  
Fupeng Cheng ◽  
Jinglong Cui ◽  
Shuai Xu ◽  
Song Li ◽  
Pengchao Zhang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Isothermal Oxidation ◽  
Coated Specimen ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Spinel Layer ◽  
Content Type ◽  
430 Stainless Steel

PurposeThe purpose of this study is to improve the performance of AISI 430 stainless steel (430 SS) in increasing its oxidation resistance, suppressing coating spalling and cracking, sustaining appropriate conductivity and blocking Cr evaporation as an interconnect material for intermediate temperature solid oxide fuel cells; a protective co-contained coating is formed onto stainless steel via the surface alloying process and followed by thermal oxidation.Design/methodology/approachIn this work, oxidation behavior of coated specimen is studied during isothermal and cyclic oxidation measurements. Moreover, the conductivity is also investigated by area specific resistance (ASR) measurement.FindingsCo-contained spinel layer shows an outstanding performance in preventing oxidation and improving conductivity compared with uncoated specimens. The protective spinel coating also reduces the ASR for coated specimen (0.0576O cm2) as compared to the uncoated specimen (1.87296O cm2) after isothermal oxidation.Originality/valueThe probable mechanism of co-contained alloy converting into spinel and the spinel transfer electron is presented.

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