Paper Title:
Investigation on the Corrosion Resistance of PIM 316L Stainless Steel in PEM Fuel Cell Simulated Environment
  Abstract

Bipolar plates play main functions in PEM fuel cells, accounting for the most part of the weight and cost of these devices. Powder metallurgy may be an interesting manufacturing process of these components owing to the production of large scale, complex near-net shape parts. However, corrosion processes are a major concern due to the increase of the passive film thickness on the metal surface, lowering the power output of the fuel cell. In this work, the corrosion resistance of PIM AISI 316L stainless steel specimens was evaluated in 1M H2SO4 + 2 ppm HF solution at room temperature during 30 days of immersion. The electrochemical measurements comprised potentiodynamic polarization and electrochemical impedance spectroscopy. The surface morphology of the specimens was observed before and after the corrosion tests through SEM images. The material presented low corrosion current density suggesting that it is suitable to operate in the PEM fuel cell environment.

  Info
Periodical
Materials Science Forum (Volumes 660-661)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
209-214
DOI
10.4028/www.scientific.net/MSF.660-661.209
Citation
M. C. L. de Oliveira, I. Costa, R. A. Antunes, "Investigation on the Corrosion Resistance of PIM 316L Stainless Steel in PEM Fuel Cell Simulated Environment", Materials Science Forum, Vols. 660-661, pp. 209-214, 2010
Online since
October 2010
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$32.00
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