Multilayer Surface-Area Structure and the Influence of Residual Oxygen on its Formation During Irradiation of TiNi Alloy with a Low-Energy High-Current Electron Beam

The structure and phase composition of a subsurface layer of TiNi alloy modified in the mode of pulsed melting with a microsecond low-energy (to ~40 keV) high-current (to ~50 kA) electron beam is investigated. The influence of the number of pulses at a constant energy density on the characteristics...

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Veröffentlicht in:	Russian physics journal 2019-12, Vol.62 (8), p.1428-1437
Hauptverfasser:	Meisner, L. L., Neiman, A. A., Semin, V. O., Gudimova, E. Yu, Ostapenko, M. G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloys Columnar structure Condensed Matter Physics Crystals Electron beams Flux density Hadrons Heavy Ions High current Intermetallic compounds Lasers Mathematical and Computational Physics Multilayers Nickel base alloys Nickel compounds Nuclear Physics Optical Devices Optics Phase composition Phase distribution Photonics Physics Physics and Astronomy Recrystallization Shape memory alloys Structure Surface layers Theoretical Titanium compounds
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Beschreibung
Zusammenfassung:	The structure and phase composition of a subsurface layer of TiNi alloy modified in the mode of pulsed melting with a microsecond low-energy (to ~40 keV) high-current (to ~50 kA) electron beam is investigated. The influence of the number of pulses at a constant energy density on the characteristics of structure, phasecomposition changes, and behavior of the phase distribution near the surface is considered. The role of oxygen in the columnar structure stabilization of the recrystallized surface layer is discussed.
ISSN:	1064-8887 1573-9228
DOI:	10.1007/s11182-019-01860-3