Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Plasma Nitrided Type 349 Stainless Steel for Polymer Electrolyte Membrane Fuel Cell Bipolar Plate—Part I: Nitrided in Nitrogen Plasma

Journal Article · · Journal of Fuel Cell Science and Technology
DOI:https://doi.org/10.1115/1.3178555· OSTI ID:1245728
 [1];  [1];  [1]
  1. National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, CO 80401

An austenite 349 stainless steel was nitrided via nitrogen plasma. Glancing angle X-ray diffraction patterns suggest that the nitrided layer is amorphous. X-ray photoelectron spectroscopy analysis indicated that the plasma nitridation process produced bulk-type nitrides in the surface layer. In general, the nitrided layer was composed of iron oxide in the outer layer and chromium oxide in the inner layers. Contaminations of vanadium and tin were detected in the as-grown nitrided layer; these dissolved away after polarization. The influence of these contaminants on the corrosion resistance of the nitrided layer in polymer electrolyte membrane fuel cell (PEMFC) environments is not considered significant. The nitrided sample had a much higher contact resistance than the bare one and the contact resistance increased with the nitriding time. The high interfacial contact resistance values can be related to the thicker oxide film after plasma nitridation. The corrosion resistances obtained for the 1 h nitrided and bare stainless steels in simulated PEMFC environments were similar. The outmost nitrided layer dissolved after polarization in the PEMFC environments leaving a passive film (modified with nitrides), similar to that of bare stainless steel under the same conditions. The passive film thickness was 3.7 nm for nitrided steel in PEMFC cathode environment and 4.2 nm for nitrided steel in PEMFC anode environment.

Research Organization:
NREL (National Renewable Energy Laboratory (NREL), Golden, CO (United States))
Sponsoring Organization:
USDOE Hydrogen, Fuel Cells and Infrastructure Technologies Program
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1245728
Report Number(s):
NREL/JA-560-43057
Journal Information:
Journal of Fuel Cell Science and Technology, Journal Name: Journal of Fuel Cell Science and Technology Journal Issue: 2 Vol. 7; ISSN 1550-624X
Publisher:
ASME
Country of Publication:
United States
Language:
English

References (44)

Materials and design development for bipolar/end plates in fuel cells journal April 2004
Effects of pulse frequency and temperature on the nitride layer and surface characteristics of plasma nitrided stainless steel journal March 2001
Improvement of the mechanical properties of austenitic stainless steel after plasma nitriding journal November 2000
Stainless steel bipolar plates journal August 2005
XPS study of the passive films formed on nitrogen-implanted austenitic stainless steels journal January 1992
Plasma immersion ion implantation of stainless steel: austenitic stainless steel in comparison to austenitic-ferritic stainless steel journal November 1996
Further investigation of the structure and properties of austenitic stainless steel after plasma nitriding journal September 1999
Electrochemically induced annealing of stainless-steel surfaces journal October 2000
Materials for fuel-cell technologies journal November 2001
Chemical bonding of nitrogen in low energy high flux implanted austenitic stainless steel journal January 2002
Surface films on plasma nitrided stainless steel subjected to passivation treatments journal July 1999
On the Passivation of 349TM Stainless Steel in Simulated PEMFC Cathode Environment conference January 2006
Role of Nitrogen in Pitting Corrosion Resistance of a High-Nitrogen Face-Centered-Cubic Phase Formed on Austenitic Stainless Steel journal January 2005
Surface modification of AISI 304 austenitic stainless steel by plasma nitriding journal April 2003
Stainless steel as bipolar plate material for polymer electrolyte membrane fuel cells journal April 2003
New materials for polymer electrolyte membrane fuel cell current collectors journal July 1999
Electrochemical passivation of iron alloys and the film characterisation by XPS journal October 2000
Surface conductivity and stability of metallic bipolar plate materials for polymer electrolyte fuel cells journal April 2006
Thermally nitrided stainless steels for polymer electrolyte membrane fuel cell bipolar plates journal November 2004
Plasma-nitrided austenitic stainless steel 316L as bipolar plate for PEMFC journal October 2006
Nitriding at low temperature journal September 2000
Bipolar plates for PEM fuel cells: A review journal September 2005
The influence of nitrogen on the passivation of stainless steels journal July 1996
XPS, SEM and TEM characterization of stainless-steel 316L surfaces after electrochemical etching and oxidizing journal August 1999
An XPS and electrochemical study of the influence of molybdenum and nitrogen on the passivity of austenitic stainless steel journal January 1990
In vitro corrosion resistance of plasma source ion nitrided austenitic stainless steels journal April 2001
Effect of plasma nitriding on behavior of austenitic stainless steel 304L bipolar plate in proton exchange membrane fuel cell journal January 2007
Characteristics of low pressure plasma arc source ion nitrided layer on austenitic stainless steel at low temperature journal July 2001
Fabrication of LiV2O5 thin-film electrodes for rechargeable lithium batteries journal August 1998
The influences of microstructure and nitrogen alloying on pitting corrosion of type 316L and 20 wt.% Mn-substituted type 316L stainless steels journal January 2001
Stainless steel as a bipolar plate material for solid polymer fuel cells journal March 2000
Use of stainless steel for cost competitive bipolar plates in the SPFC journal March 2000
Metal bipolar plates for PEM fuel cell—A review journal January 2007
Design and Testing Criteria for Bipolar Plate Materials for Pem Fuel Cell Applications journal January 1995
Thermally nitrided stainless steels for polymer electrolyte membrane fuel cell bipolar plates journal November 2004
X-ray photoelectron spectroscopy and Auger electron spectroscopy studies on the passivation behavior of plasma-nitrided low alloy steel in nitric acid journal December 1991
Electrochemical and surface studies on the passivity of nitrogen and molybdenum containing laser cladded alloys in 3.5 wt% NaCl solution journal May 1995
Metallic bipolar plates for PEM fuel cells journal March 2002
Effects of Hydrogen on Semiconductivity of Passive Films and Corrosion Behavior of 310 Stainless Steel journal June 1999
Bipolar plate materials development using Fe-based alloys for solid polymer fuel cells journal March 1998
On the question of nitrate formation by N-containing austenitic stainless steels journal October 1994
Ferritic stainless steels as bipolar plate material for polymer electrolyte membrane fuel cells journal April 2004
Review of Materials and Characterization Methods for Polymer Electrolyte Fuel Cell Flow-Field Plates journal March 2006
Comparative studies of polymer electrolyte membrane fuel cell stack and single cell journal July 1999

Similar Records

Thermally Nitrided Stainless Steels for Polymer Electrolyte Membrane Fuel Cell Bipolar Plates: Part 2: Beneficial Modification of Passive Layer on AISI446
Journal Article · Wed Dec 31 23:00:00 EST 2003 · Journal of Power Sources · OSTI ID:1003128

Thermally Nitrided Stainless Steels for Polymer Electrolyte Membrane Fuel Cell Bipolar Plates: Part 1 Model Ni-50Cr and Austenitic 349TM alloys
Journal Article · Wed Dec 31 23:00:00 EST 2003 · Journal of Power Sources · OSTI ID:1003129

SnO2:F Coated Duplex Stainless Steel for PEM Fuel Cell Bipolar Plates
Journal Article · Mon Dec 31 23:00:00 EST 2007 · ECS Transactions · OSTI ID:958234