This study shows the X-ray diffraction analysis of the structural changes registered in samples of highly pure aluminum (99.999%) of two different castings and of the aluminum alloy 7075 when they are irradiated at liquid nitrogen (LN 2 ) temperature by protons of 300 keV first and of 700 keV thereafter, from a 0.7 MeV Van de Graff accelerator. The samples were also introduced in a magnetic field, and thereafter irradiated with a laser beam. The results indicated the loss of texture in the samples after proton irradiation and the magnetic field and laser beam treatments were found as contributors in the consolidation of the new structure. Without proton irradiation and without the LN 2 temperature, no structural change was observed.
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