том 13 / 

выпуск 3


Скачать полную версию статьи (в PDF формате)

Е. Э. Засимчук, Н. Г. Чаусов, Т. В. Турчак, А. С. Гаценко, А. И. Баскова, Е. М. Волянская, Р. Г. Гонтарева, В. Б. Гуцайлюк
«Влияние динамического нагружения на наноструктурные изменения в сплаве 2024-Т3, разрушенном в условиях усталости»
511–524 (2015)

PACS numbers: 06.06.Vz, 61.72.Ff, 62.20.me, 62.23.St, 81.40.Lm, 81.40.Np, 81.70.Bt

In a given work, the results of a quantitative investigation of the phase composition of the 2024-T3 alloy samples destroyed under cyclic loads after prior static and dynamic tensile are presented. As shown, the phase composition of the alloy, including, in addition to the aluminium-based solid solution, strengthening phases in the form of the Al2Cu (so-called ?-phase) and CuAl2Mg (so-called S-phase) nanoparticles, is considerably changed during plastic deformation. Reducing the concentration of one of the phases is accompanied by increasing concentration of the other analysed phase; however, the total concentration of particles is always reduced compared with the initial state for all using types of mechanical treatment. As shown, the fatigue life of the 2024-T3 alloy can be increased during the preliminary static deformation with impulse load that is conducive to both sharp decreasing of the concentration of the S-phase nanoparticles and increasing of the concentration of the ?-phase nanoparticles.

©2003—2021 NANOSISTEMI, NANOMATERIALI, NANOTEHNOLOGII G. V. Kurdyumov Institute for Metal Physics of the National Academy of Sciences of Ukraine.
E-mail: tatar@imp.kiev.ua Phones and address of the editorial office About the collection User agreement