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Influence of recrystallization on phase separation kinetics of oxide dispersion strengthened Fe–Cr–Al alloy

AuthorsCapdevila, Carlos; Miller, M.K; Pimentel, G.; Chao, Jesús
KeywordsPhase separation
Ferrous alloy
Mechanical alloying;
Thermoelectric power
Issue Date2012
CitationScripta Materialia 66 (5) : 254-257 (2012)
AbstractThe effect of different starting microstructures on the kinetics of Fe-rich (a) and Cr-rich (a0) phase separation during aging of Fe– Cr–Al oxide dispersion strengthened (ODS) alloys has been analyzed with a combination of atom probe tomography and thermoelectric power measurements. The results revealed that the high recrystallization temperature necessary to produce a coarse grained microstructure in Fe-base ODS alloys affects the randomness of Cr-atom distributions and defect density, which consequently affect the phase separation kinetics at low annealing temperatures.
Publisher version (URL)http://dx.doi.org/10.1016/j.scriptamat.2011.11.003
Appears in Collections:(CENIM) Artículos
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