Corrosion protection of Ti/TiN, Cr/TiN, Ti/CrN, and Cr/CrN multi-coatings in simulated proton exchange membrane fuel cell environment

Nam, Nguyễn Đăng; Kim, M.J.; Jo, Deok Su; Kim, Jae Gyoon; Yoon, Dohyeon

doi:10.1016/j.tsf.2013.07.056

Cited by 63 publications

(15 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared to the uncoated sample (substrate), the multilayered CrN/ZrN coating displays lower corrosion current density and nobler corrosion potential, reflecting the better corrosion behavior of the coating. Similar results were reported by other researchers in the case of the corrosion behavior of the multilayered coatings deposited by PVD-based methods [18,44,45].…”

Section: Pdp Assayssupporting

confidence: 91%

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Samim

Fattah‐alhosseini

Elmkhah

et al. 2020

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

In this study, a zirconium nitride/chromium nitride nano-multilayer coating was deposited on AISI 304 specimen using cathodic arc evaporation-physical vapor deposition (CAE-PVD). The characterization of the samples were evaluated by scanning electron microscopy (SEM), field emission-SEM (FE-SEM), and X-ray diffraction (XRD). To evaluate effect of immersion time on the electrochemical behavior of ZrN/CrN nano-multilayer coating using electrochemical impedance spectroscopy (EIS) measurements were carried out in 3.5 wt. % NaCl media. Using the CAE-PVD method, nano-multilayer ZrN/CrN coating with high adhesion and density was successfully produced. A unique high polarization resistance of ZrN/CrN nano-multilayer coatings in comparison to AISI 304 stainless steel without coating was made. As well as the desirable behavior corrosion results showed that in the ZrN/CrN nano-multilayer coating to the AISI 304 substrate within the 3.5 wt. % NaCl, there is a barrier against corrosive agents that is preventing corrosion occurrence. The SEM images disclosed that there were not any pits or severe damages on the surface of the ZrN/CrN nano-multilayer coating. The FE-SEM micrographs show that the coating structure contains alternate layers of ZrN and CrN. The energy dispersive spectroscopy (EDS) analysis and x-ray map were disclosed elements distribution in the cross-section of the nano-multilayer coating.

show abstract

Section: Pdp Assayssupporting

confidence: 91%

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Samim

Fattah‐alhosseini

Elmkhah

et al. 2020

Journal of Asian Ceramic Societies

View full text Add to dashboard Cite

show abstract

“…Although n dl presented lower values as compared to n ox values obtained from both samples, indicating more heterogeneous surfaces on the HAP‐depleted zones, C dl and R ct values were close to C ox and R ox values of Ti samples, respectively. Therefore, although a dense and compact film was not formed on the metallic surfaces between the HAP remnants or decomposition products (Figure ), apparently, these sites contributed to the overall corrosion resistance …”

Section: Resultsmentioning

confidence: 99%

Effect of HAP decomposition on the corrosion behavior of Ti–HAP biocomposites

Toptan

Alves

Ferreira

et al. 2018

Materials & Corrosion

View full text Add to dashboard Cite

Ti–HAP biocomposites are gained attention for combining the attractive properties of Ti and hydroxyapatite (HAP). However, the decomposition of HAP at elevated processing temperatures is a major concern since it can lead to structural flaws and may deteriorate the corrosion resistance of Ti. The present study aims to investigate the corrosion behavior of Ti–HAP composite processed by powder metallurgy by performing potentiodynamic polarization and electrochemical impedance spectroscopy in 0.9 wt% NaCl solution at body temperature. Results show that the presence of Ti lowers the HAP decomposition temperatures resulting in the formation of HAP‐depleted zones acting as electrochemically active sites, decreasing the corrosion resistance.

show abstract

“…The steels with varying Ni, Mo, and Cr were ranked according to their performance in both half‐ and single‐cell conditions as 349TM >904L >317L >316L. Coatings, such as graphene, Cr‐C, TiN/CrN, TaN, Zr‐C, CrN, NbN, Ti/TiN, Cr/CrN, etc., are expected to improve corrosion resistance and reduce ICR values simultaneously 16‐25 . However, the modification processes utilizes sophisticated coating techniques like, physical vapor deposition, chemical vapor deposition, magnetron sputtering, etc., which enhances the cost 26,27 .…”

Section: Introductionmentioning

confidence: 99%

Corrosion characteristics and fuel cell performance of a cost‐effective high Mn–Low Ni austenitic stainless steel as an alternative to SS 316L bipolar plate

Kumar

Shaik

Saravanan³

et al. 2020

Int J Energy Res

View full text Add to dashboard Cite

Summary In this study, newly developed high manganese (Mn) and low nickel (Ni) austenitic stainless steels were investigated as an alternative to conventionally used SS 316L for bipolar plate applications in proton exchange membrane fuel cells. Systematic studies on the corrosion behavior were carried out in simulated hydrogen and oxygen environments, for both half‐ and fuel‐cell conditions. The Mn‐based SS revealed nobler corrosion potential and comparable passive current densities to that of SS 316L. The passive current density of Mn‐based SS is well within the DoE 2020 target of <1 μA cm−2. Though MnSS1 steel has lean Ni content, the addition of Mn and N is beneficial for improving the corrosion performance, which is comparable to SS 316L. The recorded ICR values for Mn SS1 and SS 316L are 234.6 ± 20 and 155 ± 20 mΩ cm2 at a compaction force of 140 N cm−2, respectively. Both the steels do not to meet the DoE ICR target of 10 mΩ cm2, which requires conductive coating or improvement in oxide conductivity. The performances of the steels (both Mn‐SS and 316L SS) with varying thickness were also investigated in a single fuel cell condition with serpentine flow field design as bipolar plates with varying thickness (10, 5 and 2 mm). A maximum power density of 370 mW cm−2 was achieved with the Mn‐based metallic bipolar plates, whereas SS 316L showed 354 mW cm−2. By changing the composition of austenitic stainless steel, that is, using Mn SS1 instead of SS 316L the overall fuel cell cost decreases by three times.

show abstract

Corrosion protection of Ti/TiN, Cr/TiN, Ti/CrN, and Cr/CrN multi-coatings in simulated proton exchange membrane fuel cell environment

Cited by 63 publications

References 35 publications

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Effect of HAP decomposition on the corrosion behavior of Ti–HAP biocomposites

Corrosion characteristics and fuel cell performance of a cost‐effective high Mn–Low Ni austenitic stainless steel as an alternative to SS 316L bipolar plate

Contact Info

Product

Resources

About