Laser Fusion of an Zirconium-Based Alloy in Various Gaseous Mediums
V. V. Gіrzhon, O. V. Smolyakov, T. A. Dmitrenko
Zaporizhzhya National University, 66 Zhukovsky Str., 69600 Zaporizhzhya, Ukraine
Received: 19.06.2017. Download: PDF
The effect of pulsed laser treatment in different gaseous atmospheres on the structural-phase state of the surface layers of Zr–2.5Nb alloy is studied by x-ray diffraction analysis. As shown, the laser alloying of samples in a nitrogen atmosphere leads to a zirconium nitride ZrN formation and a significant increase of surface layers’ microhardness. When laser treatment in air is carried out, nitride and two different modifications of oxide ZrO2 are formed. Laser treatment of alloy samples in argon atmosphere does not lead to formation of new crystalline phases.
Key words: laser treatment, zirconium, zirconium oxide, zirconium nitride, Zr–2.5Nb alloy.
URL: http://mfint.imp.kiev.ua/en/abstract/v39/i08/1087.html
DOI: https://doi.org/10.15407/mfint.39.08.1087
PACS: 61.05.cp, 61.80.Ba, 62.20.Qp, 68.35.-p, 81.16.Mk, 81.40.Wx, 81.65.Lp
Citation: V. V. Gіrzhon, O. V. Smolyakov, and T. A. Dmitrenko, Laser Fusion of an Zirconium-Based Alloy in Various Gaseous Mediums, Metallofiz. Noveishie Tekhnol., 39, No. 8: 1087—1095 (2017) (in Russian)