Hydrogen permeation in nanostructured bainitic steel

Kazum, Oluwole, Beladi, Hossein, Timokhina, Ilana B., He, Yinghe, and Kannan, M. Bobby (2016) Hydrogen permeation in nanostructured bainitic steel. Metallurgical and Materials Transactions A, 47A (10). pp. 4896-4903.

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Hydrogen permeation of nanostructured bainitic steel, produced at two different transformation temperatures, i.e., 473.15 K (200 A degrees C) BS-200 and 623.15 K (350 A degrees C) BS-350, was determined using Devanathan-Stachurski hydrogen permeation cell and compared with that of mild steel. Nanostructured bainitic steel showed lower effective diffusivity of hydrogen as compared to the mild steel. The BS-200 steel, which exhibited higher volume fraction of bainitic ferrite phase, showed lower effective diffusivity than BS-350 steel. The finer microstructural constituents (bainitic ferrite laths and retained austenite films) and higher dislocation density in the bainitic ferrite phase of BS-200 steel can be attributed to its lower effective diffusivity as compared to BS-350 steel and mild steel.

Item ID: 48525
Item Type: Article (Research - C1)
ISSN: 1543-1940
Date Deposited: 02 May 2017 00:25
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%
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