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, M.; Hansen, M. F.; Somers, M. A. J.. - In: SCRIPTA MATERIALIA. - ISSN 1359-6462. - 141:(2017), pp. 129-132. [10.1016/j.scriptamat.2017.08.005]
Martensite formation in Fe-C alloys at cryogenic temperatures
Villa M.;
2017-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
