Open AccessИсследование изменения микротвердости поверхности циркония после лазерной модифицирующей обработки
Author(s) -
В.И. Проскуряков,
И.В. Родионов,
В.А. Кошуро
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.06.47493.17598
Subject(s) - zirconium , materials science , laser , alloy , laser beams , metal , nitride , hardening (computing) , layer (electronics) , surface layer , metallurgy , composite material , optics , physics
The results of an investigation of the process of laser-induced hardening of zirconium (E110 alloy) are reported. It has been established that the laser treatment in air results in the formation of a uniformly distributed microrelief characterized by the presence of microparticles with various configurations. Overlap of the laser beam trajectories leads to the formation of a layered structure. The composition of laser-modified surface depends on the regime of processing and mostly comprises a mixture of zirconium oxides and nitrides. In addition, the formation of diffuse transition zones between the bulk metal and modified surface layer is established. The dependence of the thickness of the hardened layer on the regime of pulsed laser action is determined.