In-situ small-angle neutron scattering study of the growth and dissolution of precipitates in Al-Li alloys
作者： K. Mergia , F. Al-Hazmi , R. J. Stewart , S. Messoloras
DOI: 10.1080/01418619708214003
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摘要: Abstract The growth of the δ' precipitates in Al-Li alloys was studied by situ small-angle neutron scattering experiments temperature range from 406 to 487 K. size, number density and volume fraction were determined as a function ageing time. kinetics at high temperatures for long times lower follow coarsening theory. Two sets kinetic constants different determined; one set calculated size increase other reduction their density. energies diffusion obtained both are same, having value 1·18eV. Also good agreement is found surface two constants. For shorter can be described long-time behaviour if second-order correction effect incubation pe...
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