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

被引：9

作者：

Su, Y. L. ^{[1
]}

Kao, W. H. ^{[2
,3
]}

Chang, G. Y. ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mech Engn, Tainan, Taiwan

[2] Chien Kuo Technol Univ, Dept Automat Engn, Changhua, Taiwan

[3] Chien Kuo Technol Univ, Inst Mechatronopt Syst, Changhua, Taiwan

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2023年 / 32卷 / 08期

关键词：

bipolar plate; CrC coating; corrosion; tribological property; DIAMOND-LIKE-CARBON; CHROMIUM/CHROMIUM CARBIDE MULTILAYERS; TRIBO-MECHANICAL PROPERTIES; CONTACT RESISTANCE; CORROSION-RESISTANCE; SURFACE-ROUGHNESS; FILM; MICROSTRUCTURE; PERFORMANCE; BEHAVIOR;

D O I：

10.1007/s11665-022-07333-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CrCx coatings (where x = 5 similar to 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-sp(2) 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-sp(2) content.

引用

页码：3739 / 3754

页数：16

共 69 条

[1] Electrodeposition of conductive PAMT/PPY bilayer composite coatings on 316L stainless steel plate for PEMFC application [J].