Study of the precipitation kinetics in an Al–8.9 at.% Li alloy using small-angle neutron scattering
作者： K. Mergia , S. Messoloras , F. Al-Hazmi , R. J. Stewart
DOI: 10.1080/01418610008216495
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摘要: Abstract The growth of δ' precipitates in an Al–8.9 at.% Li alloy was studied by small angle neutron scattering experiments the temperature range from 363 to 483 K. radius, number density and volume fraction concentration solute matrix were determined as functions ageing time. All parameters determined, except those corresponding short at K, follow predictions coarsening theories. From increase radius precipitates, decrease their versus time, kinetic constants for different temperatures. three sets give within errors same energy diffusion, having a mean value 1.24 ± 0.03 eV. δ'-α solvus line agrees well with that available literature theoretical calculations. diffusion constant the...
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