@article {1466,
	title = {Designing nickel base alloys for microstructural stability through low γ-γ' interfacial energy and lattice misfit},
	journal = {Materials and Design},
	volume = {140},
	year = {2018},
	pages = {249{\textendash}256},
	abstract = {<p>
	An extended stability alloy design strategy for multicomponent \&gamma;-\&gamma;\&prime; nickel-base alloys with near-zero lattice misfit and as low as possible interfacial energy was investigated by isothermal annealing of two experimental alloys at 900 \&deg;C for times up to 256 h. The coarsening behavior of the spherical \&gamma;\&prime; precipitates and the phase compositions determined by atom probe tomography were utilized to exploit a modified Lifshitz-Slyozov-Wagner relationship to estimate the interfacial energies. The estimated interfacial energies are much lower than predicted by a CALPHAD-based software as well as those typically reported for multicomponent \&gamma;-\&gamma;\&prime; nickel alloys. Despite successfully minimizing the interfacial energy and \&gamma;-\&gamma;\&prime; lattice misfit, these factors alone were not sufficient to impart high temperature extended stability through reduced coarsening kinetics.
</p>
},
	keywords = {Atom probe tomography, Interfacial energy, Precipitate coarsening, γ-γ' nickel-base alloy},
	issn = {18734197},
	doi = {10.1016/j.matdes.2017.11.065},
	url = {http://dx.doi.org/10.1016/j.matdes.2017.11.065},
	author = {Meher, S. and Carroll, M. C. and Pollock, T. M. and Carroll, L. J.}
}
