TY - JOUR
T1 - Characterization and modeling of precipitation kinetics in a Fe-Si-Ti alloy
AU - Perrier, Malika
AU - Deschamps, Alexis
AU - Bouaziz, Olivier
AU - Brechet, Yves
AU - Danoix, Frédéric
AU - De Geuser, Frédéric
AU - Donnadieu, Patricia
AU - Hoummada, Khalid
AU - Maugis, Philippe
PY - 2012/12
Y1 - 2012/12
N2 - In this article, we present a systematic study of precipitation kinetics in a Fe-Si-Ti alloy in the temperature range 723 K to 853 K (450 °C to 580 °C), combining complementary tools (transmission electron microscopy (TEM), atom probe tomography (APT), and small-angle neutron scattering (SANS)). We show that the Heusler phase Fe2SiTi dominates the precipitation process in the investigated time and temperature range, regardless of the details of the initial temperature history. A numerical model based on the evolution of precipitate size classes gives very good agreement with the experimental results, and its application to different alloy compositions provides directions for future alloy optimization.
AB - In this article, we present a systematic study of precipitation kinetics in a Fe-Si-Ti alloy in the temperature range 723 K to 853 K (450 °C to 580 °C), combining complementary tools (transmission electron microscopy (TEM), atom probe tomography (APT), and small-angle neutron scattering (SANS)). We show that the Heusler phase Fe2SiTi dominates the precipitation process in the investigated time and temperature range, regardless of the details of the initial temperature history. A numerical model based on the evolution of precipitate size classes gives very good agreement with the experimental results, and its application to different alloy compositions provides directions for future alloy optimization.
UR - http://www.scopus.com/inward/record.url?scp=84870416418&partnerID=8YFLogxK
U2 - 10.1007/s11661-012-1337-8
DO - 10.1007/s11661-012-1337-8
M3 - Article
AN - SCOPUS:84870416418
SN - 1073-5623
VL - 43
SP - 4999
EP - 5008
JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
IS - 13
ER -