TY - JOUR
T1 - Analysis of ostwald ripening in ni-rich ni-ti alloys by diffusion couples
AU - Garay-Reyes, C. G.
AU - Hernández-Santiago, F.
AU - Cayetano-Castro, N.
AU - Martínez-Sánchez, R.
AU - Hernández-Rivera, R.
AU - Dorantes-Rosales, H. J.
AU - Cruz-Rivera, J. J.
PY - 2014/6
Y1 - 2014/6
N2 - The coarsening kinetics of γ' precipitates in Ni-rich Ni-Ti alloys are studied using a Ni-11·5 wt% Ti and pure Ni diffusion couple. The formed concentration gradient allowed to study the aging process at 1023 K (750 °C) in Ni-rich Ni-Ti alloys with Ti content from 8·62 to 11·15 wt% Ti. In general, during the coarsening of γ' precipitates, the experimental coarsening kinetics do not fit well to the LSW or TIDC theoretical models and anomalous behaviour of coarsening rate constant (kr) associated with γ' volumefraction is confirmed at high values.
AB - The coarsening kinetics of γ' precipitates in Ni-rich Ni-Ti alloys are studied using a Ni-11·5 wt% Ti and pure Ni diffusion couple. The formed concentration gradient allowed to study the aging process at 1023 K (750 °C) in Ni-rich Ni-Ti alloys with Ti content from 8·62 to 11·15 wt% Ti. In general, during the coarsening of γ' precipitates, the experimental coarsening kinetics do not fit well to the LSW or TIDC theoretical models and anomalous behaviour of coarsening rate constant (kr) associated with γ' volumefraction is confirmed at high values.
KW - Anomalous coarsening
KW - Diffusion couple
KW - LSW theory
KW - Nickel-based alloys
KW - TIDC theory
KW - γ' precipitates coarsening
UR - http://www.scopus.com/inward/record.url?scp=84903265789&partnerID=8YFLogxK
U2 - 10.1007/s12034-014-0012-7
DO - 10.1007/s12034-014-0012-7
M3 - Artículo
SN - 0250-4707
VL - 37
SP - 823
EP - 829
JO - Bulletin of Materials Science
JF - Bulletin of Materials Science
IS - 4
ER -