کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1278933 | 1497577 | 2011 | 10 صفحه PDF | دانلود رایگان |
The bipolar plate is an important component of the polymer electrolyte membrane fuel cell (PEMFC) because it supplies the pathway of the electron flow between each unit cell. The ferritic stainless steel is considered a good candidate material for bipolar plate, but it is limited to use as a bipolar plate due to its corrosion problem and high interfacial contact resistance (ICR). To explore a cost-effective method of surface modification, various chemical and heat treatments are performed with 446M ferritic stainless steel to understand the effect of the surface modifications on the ICR and the corrosion resistance. The ICR and corrosion resistance of 446M stainless steel can be effectively controlled by a proper surface modification with combined treatment of immersion in the acidic solution, followed by heat treatment. The combined chemical and heat treatment not only improves the corrosion resistance but also reduces the ICR value.
► The chemical and heat treatments are performed with 446M ferritic stainless steel.
► The chemical treatment decreases the ICR value of 446M.
► The heat treatment improves the corrosion resistance of 446M.
► The ICR and corrosion resistance can be controlled by proper surface modification.
Journal: International Journal of Hydrogen Energy - Volume 36, Issue 16, August 2011, Pages 9926–9935