Effect of Fe Addition on Ordering Kinetics in System. Monte Carlo Simulation

摘要

The influence of Fe admixture on ordering kinetics in Ni3Ali.xFex was studied by running Monte Carlo simulations in a model system A_3Bi.xCx showing similarly to Ni_3Al.xFex destabilization of the ordered phase when admixing a ternary element C. Detailed analysis of atomic jump statistics revealed a dominance of the C-atom jumps in the creation/elimination of antisite defects as well as in the migration of antisites within majority sublattice. The results elucidate the role of Fe alloying in the kinetics of chemical ordering in Ni_3Al.