Hydrogen Susceptibility of Nanostructured Bainitic Steels

Mathew James Peet; Tomohiko Hojo

doi:10.1007/s11661-015-3221-9

Hydrogen Susceptibility of Nanostructured Bainitic Steels

Mathew James Peet, Tomohiko Hojo

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Nanostructured 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.

Original language	English
Pages (from-to)	718-725
Number of pages	8
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	47
Issue number	2
DOIs	https://doi.org/10.1007/s11661-015-3221-9
Publication status	Published - 2016 Feb 1
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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abstract = "Nanostructured 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.",

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Hydrogen Susceptibility of Nanostructured Bainitic Steels

Abstract

ASJC Scopus subject areas

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