TY - GEN
T1 - Spinodal decomposition in Fe-Cr alloys
AU - Soriano Vargas, Orlando
AU - Avila-Davila, Erika O.
AU - Lopez-Hirata, Victor M.
AU - Saucedo-Muñoz, Maribel L.
PY - 2011
Y1 - 2011
N2 - The hardening behavior of precipitation was studied during aging of Fe-Cr alloys. This mechanical behavior is associated with the nanometric modulation structure of the coherent decomposed Fe-rich and Cr-rich phases formed by the spinodal decomposition of the supersaturated solid solution. The growth kinetics of spinodal decomposition was very slow and it increased during coarsening stage. The morphology of decomposed phases consisted of an interconnected irregular shape with no preferential alignment for short aging times and a further aging caused the change to a plate shape of the decomposed Cr-rich phase aligned in the <110> directions of the Fe-rich matrix. The rapid increase in hardness and embrittlement seem to be associated with the coherency and nanometer size of the spinodally-decomposed phases in the aged alloys.
AB - The hardening behavior of precipitation was studied during aging of Fe-Cr alloys. This mechanical behavior is associated with the nanometric modulation structure of the coherent decomposed Fe-rich and Cr-rich phases formed by the spinodal decomposition of the supersaturated solid solution. The growth kinetics of spinodal decomposition was very slow and it increased during coarsening stage. The morphology of decomposed phases consisted of an interconnected irregular shape with no preferential alignment for short aging times and a further aging caused the change to a plate shape of the decomposed Cr-rich phase aligned in the <110> directions of the Fe-rich matrix. The rapid increase in hardness and embrittlement seem to be associated with the coherency and nanometer size of the spinodally-decomposed phases in the aged alloys.
KW - Fe-Cr alloys
KW - Growth kinetics
KW - Microstructural evolution
KW - Spinodal decomposition
UR - http://www.scopus.com/inward/record.url?scp=79960894979&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/SSP.172-174.443
DO - 10.4028/www.scientific.net/SSP.172-174.443
M3 - Contribución a la conferencia
SN - 9783037851432
T3 - Solid State Phenomena
SP - 443
EP - 448
BT - Solid-Solid Phase Transformations in Inorganic Materials
PB - Trans Tech Publications Ltd
ER -