Effect of cathodic hydrogen-charging current density on the hydrogen diffusivity in nanostructured bainitic steels
Kazum, Oluwole, and Kannan, M. Bobby (2017) Effect of cathodic hydrogen-charging current density on the hydrogen diffusivity in nanostructured bainitic steels. Materials Science and Technology, 33 (13). pp. 1548-1552.
![[img]](https://researchonline.jcu.edu.au/style/images/fileicons/application_pdf.png) |
PDF (Published Version)
- Published Version
Restricted to Repository staff only |
Abstract
The effect of cathodic hydrogen-charging current on the effective hydrogen diffusivity in nanostructured bainitic steels produced at transformation temperatures 200 degrees C (BS200) and 350 degrees C (BS350) was investigated and compared to that of mild steel. The effective hydrogen diffusivity at 10 mA cm(-2) was the lowest for BS200, followed by BS350 and mild steel, due to the finer microstructure and higher dislocation density in the bainitic ferrite of BS200. Increase in the hydrogen-charging current density, i.e. 20 and 30 mA cm(-2), increased the effective hydrogen diffusivity of mild steel by 37 and 135%, and BS350 by 49 and 150%, respectively. For BS200, the increase was not significant (2%) at 20 mA cm(-2), but increased by 34% at 30 mA cm(-2).
| Item ID: | 50470 |
|---|---|
| Item Type: | Article (Research - C1) |
| ISSN: | 1743-2847 |
| Keywords: | Nanostructured bainitic steel, cathodic-charging current, hydrogen permeation, hydrogen diffusivity |
| Date Deposited: | 20 Sep 2017 09:23 |
| FoR Codes: | 40 ENGINEERING > 4016 Materials engineering > 401607 Metals and alloy materials @ 100% |
| SEO Codes: | 86 MANUFACTURING > 8611 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) > 861103 Basic Iron and Steel Products @ 100% |
| Downloads: |
Total: 1 |
| More Statistics |
Actions (Repository Staff Only)
 |
Item Control Page |