Hydrogen Susceptibility of Nanostructured Bainitic Steels
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Authors
Peet, MJ
Hojo, T
Abstract
jats:titleAbstract</jats:title> jats:pNanostructured steels with an ultimate tensile strength of 1.6 GPa were produced with austenite content varying from 0 to 35 vol pct. The effect on the mechanical properties was assessed after saturating the steel with hydrogen. Elongation was reduced to 2 to 5 pct and UTS to 65 to 70 pct of prior value. Thermal desorption measurements confirmed the higher solubility of hydrogen in the steel with higher austenite content. The level of hydrogen saturation was found to correlate to the total area of grain boundaries rather than to the volume fraction of retained austenite.</jats:p>
Description
Keywords
TRIP-aided steel, ultra high strength steel, retained austenite, hydrogen, bainite
Journal Title
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Conference Name
Journal ISSN
1073-5623
1543-1940
1543-1940
Volume Title
47
Publisher
Springer Science and Business Media LLC