Influence of intercritical annealing temperature on the micro-galvanic interactions between austenite and ferrite in medium-Mn steel
Source abstract
Abstract
The micro-galvanic coupling between ferrite and austenite in X6MnAl12–3 was investigated depending on intercritical annealing (ICA) temperature and consequently different Mn contents in reverted austenite, phase fractions, and interface area combining microstructural changes, electrochemical testing and the solution’s element concentration during immersion. Rising the ICA temperature from 550 °C to 600 °C led to an increase of the selective dissolution of reverted austenite due to an increased ferrite/austenite area, while a further increase to 700 °C led to a reduced dissolution tendency of austenite due to its decreased Mn content and expected decrease in the potential difference between both phases.
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Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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