Enhanced Hydrogen Embrittlement Resistance of Medium Mn Steel by Tailoring Retained Austenite Morphology
Source abstract
Abstract
Hydrogen embrittlement (HE) resistance of a novel Nb–Mo bearing medium Mn steel treated by quenching at different temperatures and partitioning was investigated through electrochemical cathodic charging method, slow-rate tensile tests, and microstructure characterization. The influence of quenching temperatures on HE resistance was described as follows. (1) The low quenching temperature decreased the mean grain size of experimental steel and increased the volume fraction of filmy austenite. (2) The volume fraction of the retained austenite reached the maximum at 150 °C. (3) The mechanical stability of the retained austenite decreased with increasing quenching temperatures from 120 to 180 °C. (4) The HE resistance of the experimental steel increased with decreasing quenching temperature mainly due to the increased mechanical stability of the retained austenite.
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Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Microstructure and Mechanical Properties of Steels · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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