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Martensite formation in Fe-C alloys at cryogenic temperatures
Magnetometry was applied to quantify the fraction of austenite retained in Fe-C alloys subjected to various treatments. These treatments consisted of: (i) water quenching; (ii) water quenching followed by immersion in boiling nitrogen and again in water; (iii) as for (ii) but re-heating from 77 K at a rate of 0.0083 K s − 1 ; (iv) as for (iii) but (re-)heating at 0.167 K s − 1 interrupted by an isothermal step. Data was coupled with hardness measurements and demonstrates that the re-heating conditions from 77 K significantly influence the fraction of austenite retained at the end of the thermal cycle.
Martensite formation in Fe-C alloys at cryogenic temperatures
Magnetometry was applied to quantify the fraction of austenite retained in Fe-C alloys subjected to various treatments. These treatments consisted of: (i) water quenching; (ii) water quenching followed by immersion in boiling nitrogen and again in water; (iii) as for (ii) but re-heating from 77 K at a rate of 0.0083 K s − 1 ; (iv) as for (iii) but (re-)heating at 0.167 K s − 1 interrupted by an isothermal step. Data was coupled with hardness measurements and demonstrates that the re-heating conditions from 77 K significantly influence the fraction of austenite retained at the end of the thermal cycle.
Martensite formation in Fe-C alloys at cryogenic temperatures
Villa, Matteo (author) / Hansen, Mikkel Fougt (author) / Somers, Marcel A. J. (author)
2017-01-01
Villa , M , Hansen , M F & Somers , M A J 2017 , ' Martensite formation in Fe-C alloys at cryogenic temperatures ' , Scripta Materialia , vol. 141 , pp. 129–132 . https://doi.org/10.1016/j.scriptamat.2017.08.005
Article (Journal)
Electronic Resource
English
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