SANS study of phase decomposition in Fe-Cu alloy added by Ni and Mn
نویسندگان
چکیده
Small-angle neutron scattering ( SANS ) measurements were mainly carried out in order to investigate the structure change during early stage of phase decomposition in Fe-Cu-Ni-Mn quaternary alloy. The fact that the nuclear Guinier radius becomes larger than the magnetic one beyond about 2 nm is attributed to the formation of segregated layer enriched by Ni and Mn around fcc copper-rich precipitate. The calculated SANS intensities have been well fitted simultaneously with both experimental data of magnetic and nuclear components. Addition of Ni and Mn in Fe-Cu binary alloy was suggested to promote the precipitation reaction of 6-CU phase.
منابع مشابه
alloys: a comparison of APT and SANS data
The size, number density and compositions of ultrafine copper /manganese precipitates that form in Fe /0.80at.% Cu and Fe / 0.78at.% Cu /1.05at.% Mn model alloys that were neutron irradiated to a fluence of /1 /10 nm 2 (E /1 MeV) at 288 8C have been estimated by atom probe tomography and small-angle neutron scattering (SANS) experiments. The number density of precipitates was approximately an o...
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