Effects of nitrogen ion implantation on the surface properties of 316L stainless steel as bipolar plate for PEMFC

Min Uk Kim, Do Hyang Kim, Seung Hee Han, Yu Chan Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The bipolar plates are not only the major part of the polymer electrolyte membrane fuel cell (PEMFC) stack in weight and volume, but also a significant contributor to the stack costs. Stainless steels are considered to be good candidates for bipolar plate materials of the PEMFC due to their low cost, high strength and easy machining, as well as corrosion resistance. In this paper, 316L stainless steel with and without nitrogen ion implantation were tested in simulated PEMFC environments for application as bipolar plates. The results showed that the nitride formed by nitrogen ion implantation contributed the decrease of the interfacial contact resistance without degradation of corrosion property. The combination of excellent properties indicated that nitrogen ion implanted stainless steel could be potential candidate materials as bipolar plates in PEMFC. Current efforts have focused on optimizing the condition of ion implantation.

Original languageEnglish
Pages (from-to)722-727
Number of pages6
JournalJournal of Korean Institute of Metals and Materials
Volume47
Issue number11
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Modelling and Simulation
  • Surfaces, Coatings and Films
  • Metals and Alloys

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