TY - JOUR
T1 - "Order-order" relaxations in intermetallics
AU - Kozubski, Rafal
AU - Kozlowski, Miroslaw
AU - Pierron-Bohnes, Véronique
AU - Pfeiler, Wolfgang
N1 - Zeitschrift: Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Coden: ZEMTA
Affiliations: M. Smoluchowski Institute of Physics, Jagellonian University, Kraków, Poland; Inst. Phys. et Chim. M. Strasbourg, Strasbourg, France; Institut für Materialphysik, Universität Wien, Wien, Austria; M. Smoluchowski Institute of Physics, Jagellonian University, Reymonta 4, PL-30-059 Kraków, Poland
Adressen: Kozubski, R.; M. Smoluchowski Institute of Physics; Jagellonian University; Reymonta 4 PL-30-059 Kraków, Poland; email: [email protected]
Import aus Scopus: 2-s2.0-7044220740
17.12.2007: Datenanforderung 2031 (Import Sachbearbeiter)
PY - 2004
Y1 - 2004
N2 - "Order-order" relaxation processes in high-temperature intermetallics occur after an abrupt change of temperature and are controlled by atomic migration in the almost perfect superstructure. The related experiments were carried out using systems being of technological interest and representing three common types of superstructures: L12 (Ni 3Al-based quasi-binaries), L10 (FePd, FePt) and B2 (NiAl, FeAl). The corresponding Monte Carlo (MC) simulations of "order-order" kinetics involving the Glauber dynamics implemented with vacancy mechanism for atomic jumps were performed. The studies indicate a crucial role of anti-site-easy-diffusion channels offered by particular super-structures in determining the character of "order-order" processes and their relationship to steady-state self-diffusion. Specific mechanisms of the relaxations in triple-defect B2-ordered binaries are discussed.
AB - "Order-order" relaxation processes in high-temperature intermetallics occur after an abrupt change of temperature and are controlled by atomic migration in the almost perfect superstructure. The related experiments were carried out using systems being of technological interest and representing three common types of superstructures: L12 (Ni 3Al-based quasi-binaries), L10 (FePd, FePt) and B2 (NiAl, FeAl). The corresponding Monte Carlo (MC) simulations of "order-order" kinetics involving the Glauber dynamics implemented with vacancy mechanism for atomic jumps were performed. The studies indicate a crucial role of anti-site-easy-diffusion channels offered by particular super-structures in determining the character of "order-order" processes and their relationship to steady-state self-diffusion. Specific mechanisms of the relaxations in triple-defect B2-ordered binaries are discussed.
U2 - 10.1515/ijmr-2004-0165
DO - 10.1515/ijmr-2004-0165
M3 - Article
SN - 1862-5282
VL - 95
SP - 880
EP - 887
JO - International Journal of Materials Research
JF - International Journal of Materials Research
IS - 10
ER -