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In this study, we propose a novel method for preparation of nanocrystalline powder precursors for powder metallurgy processing. Nickel nanocrystalline powders were prepared by selective leaching of the Al-20Ni alloys in NaOH solution. The powders were studied by SEM, TEM, XRD, magnetometry and by small angle neutron scattering. The prepared powders had internal structure formed by grains of 5–50nm...
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