Solubility of Carbon in Nanocrystalline α-Iron | Zendy

Alexander Kirchner | Zendy; Konrad Eymann | Zendy; Peter Quadbeck | Zendy; Alexander Strauß | Zendy; Bernd Kieback | Zendy

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Solubility of Carbon in Nanocrystalline α-Iron

Author(s) -

Alexander Kirchner,

Konrad Eymann,

Peter Quadbeck,

Alexander Strauß,

Bernd Kieback

Publication year - 2013

Publication title -

mrs proceedings

Language(s) - English

Resource type - Journals

eISSN - 1946-4274

pISSN - 0272-9172

DOI - 10.1557/opl.2013.492

Subject(s) - nanocrystalline material , solubility , materials science , carbon fibers , grain size , graphite , grain boundary , metallurgy , chemical engineering , microstructure , chemistry , composite material , nanotechnology , composite number , engineering

By using a thermodynamic model of nanocrystalline alloys the grain size effect on the solubility of carbon in α-iron is calculated. More specifically the enrichment at grain boundaries is predicted to result in a solubility enhancement. An experimental setup is devised to measure carbon solubility in nanocrystalline iron powder in equilibrium with graphite. At 390 °C a solubility of 0.514 at% is determined for nanocrystalline iron with a grain size of 23 nm

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