Tribological, Anti-corrosion, and Electrical Conductivity Properties of CrCx Coatings Deposited on Stainless Steel 316L and Used as Metal Bipolar Plates for Fuel Cells

Y. L. Su; W. H. Kao; G. Y. Chang

doi:10.1007/s11665-022-07333-y

Tribological, Anti-corrosion, and Electrical Conductivity Properties of CrC_x Coatings Deposited on Stainless Steel 316L and Used as Metal Bipolar Plates for Fuel Cells

Y. L. Su, W. H. Kao, G. Y. Chang

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

CrC_x coatings (where x = 5 ~ 35 sccm is the acetylene flux) were deposited on stainless steel 316L substrates using radio frequency unbalanced magnetron sputtering. The CrC₃₅ coating showed the highest C-sp² content and H/E ratio of all the coatings, and thus exhibited the lowest friction coefficient and wear rate. However, the CrC₂₅ coating showed the best anti-corrosion performance in 0.5 M H₂SO₄ solution due to its low surface roughness and small cluster size. The electrochemical properties of the CrC₂₅ coating were investigated in a simulated Proton Exchange Membrane Fuel Cell (PEMFC) environment with hydrogen and oxygen purging. The coating showed a low corrosion current density in both the anode and the cathode environments. Finally, the CrC₃₅ coating showed the lowest interfacial contact resistance (ICR) of the various coatings under a compaction force of 140 Ncm⁻² due to its high C-sp² content.

Original language	English
Pages (from-to)	3739-3754
Number of pages	16
Journal	Journal of Materials Engineering and Performance
Volume	32
Issue number	8
DOIs	https://doi.org/10.1007/s11665-022-07333-y
Publication status	Published - 2023 Apr

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1007/s11665-022-07333-y

Cite this

@article{8346704f17444beeb609e1f25def3236,

title = "Tribological, Anti-corrosion, and Electrical Conductivity Properties of CrCx Coatings Deposited on Stainless Steel 316L and Used as Metal Bipolar Plates for Fuel Cells",

abstract = "CrCx coatings (where x = 5 ~ 35 sccm is the acetylene flux) were deposited on stainless steel 316L substrates using radio frequency unbalanced magnetron sputtering. The CrC35 coating showed the highest C-sp2 content and H/E ratio of all the coatings, and thus exhibited the lowest friction coefficient and wear rate. However, the CrC25 coating showed the best anti-corrosion performance in 0.5 M H2SO4 solution due to its low surface roughness and small cluster size. The electrochemical properties of the CrC25 coating were investigated in a simulated Proton Exchange Membrane Fuel Cell (PEMFC) environment with hydrogen and oxygen purging. The coating showed a low corrosion current density in both the anode and the cathode environments. Finally, the CrC35 coating showed the lowest interfacial contact resistance (ICR) of the various coatings under a compaction force of 140 Ncm−2 due to its high C-sp2 content.",

author = "Su, {Y. L.} and Kao, {W. H.} and Chang, {G. Y.}",

note = "Funding Information: The authors gratefully acknowledge the financial support provided to this study by the Ministry of Science and Technology of Taiwan under Contract No. MOST 108-2221-E-006 -182. Publisher Copyright: {\textcopyright} 2022, ASM International.",

year = "2023",

month = apr,

doi = "10.1007/s11665-022-07333-y",

language = "English",

volume = "32",

pages = "3739--3754",

journal = "Journal of Materials Engineering and Performance",

issn = "1059-9495",

publisher = "Springer New York",

number = "8",

}

TY - JOUR

T1 - Tribological, Anti-corrosion, and Electrical Conductivity Properties of CrCx Coatings Deposited on Stainless Steel 316L and Used as Metal Bipolar Plates for Fuel Cells

AU - Su, Y. L.

AU - Kao, W. H.

AU - Chang, G. Y.

N1 - Funding Information: The authors gratefully acknowledge the financial support provided to this study by the Ministry of Science and Technology of Taiwan under Contract No. MOST 108-2221-E-006 -182. Publisher Copyright: © 2022, ASM International.

PY - 2023/4

Y1 - 2023/4

N2 - CrCx coatings (where x = 5 ~ 35 sccm is the acetylene flux) were deposited on stainless steel 316L substrates using radio frequency unbalanced magnetron sputtering. The CrC35 coating showed the highest C-sp2 content and H/E ratio of all the coatings, and thus exhibited the lowest friction coefficient and wear rate. However, the CrC25 coating showed the best anti-corrosion performance in 0.5 M H2SO4 solution due to its low surface roughness and small cluster size. The electrochemical properties of the CrC25 coating were investigated in a simulated Proton Exchange Membrane Fuel Cell (PEMFC) environment with hydrogen and oxygen purging. The coating showed a low corrosion current density in both the anode and the cathode environments. Finally, the CrC35 coating showed the lowest interfacial contact resistance (ICR) of the various coatings under a compaction force of 140 Ncm−2 due to its high C-sp2 content.

AB - CrCx coatings (where x = 5 ~ 35 sccm is the acetylene flux) were deposited on stainless steel 316L substrates using radio frequency unbalanced magnetron sputtering. The CrC35 coating showed the highest C-sp2 content and H/E ratio of all the coatings, and thus exhibited the lowest friction coefficient and wear rate. However, the CrC25 coating showed the best anti-corrosion performance in 0.5 M H2SO4 solution due to its low surface roughness and small cluster size. The electrochemical properties of the CrC25 coating were investigated in a simulated Proton Exchange Membrane Fuel Cell (PEMFC) environment with hydrogen and oxygen purging. The coating showed a low corrosion current density in both the anode and the cathode environments. Finally, the CrC35 coating showed the lowest interfacial contact resistance (ICR) of the various coatings under a compaction force of 140 Ncm−2 due to its high C-sp2 content.

UR - http://www.scopus.com/inward/record.url?scp=85137887404&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85137887404&partnerID=8YFLogxK

U2 - 10.1007/s11665-022-07333-y

DO - 10.1007/s11665-022-07333-y

M3 - Article

AN - SCOPUS:85137887404

SN - 1059-9495

VL - 32

SP - 3739

EP - 3754

JO - Journal of Materials Engineering and Performance

JF - Journal of Materials Engineering and Performance

IS - 8

ER -

Tribological, Anti-corrosion, and Electrical Conductivity Properties of CrC_x Coatings Deposited on Stainless Steel 316L and Used as Metal Bipolar Plates for Fuel Cells

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this