NDLI: Structural transformation and residual stresses in surface layers of α + β titanium alloys nanotextured by femtosecond laser pulses

Content Provider	Springer Nature Link
Author	Kolobov, Yu. R. Golosov, E. V. Vershinina, T. N. Zhidkov, M. V. Ionin, A. A. Kudryashov, S. I. Makarov, S. V. Seleznev, L. V. Sinitsyn, D. V. Ligachev, A. E.
Copyright Year	2014
Abstract	Surface topography, phase composition and compressive residual stresses were characterized in surface layers of α + β titanium alloys VT6 (Ti–6Al–4V) and VT16 (Ti–3Al–4.5V–5Mo) nanotextured by 744-nm, 120-fs-laser pulses. The relative content of β-phase, along with the residual compressive stresses, increases significantly in both these materials over the depth ~0.2 μ in the nanotextured surface layer comprised by nanograins and remains almost unchanged at higher depths of 1–2 μ in bulk. The laser-driven α → β phase transformation is related to the combined effect of ultrafast heating/cooling, strong (multi-GPa) shock waves, chemical segregation and nanograin formation induced during the ablative surface nanotexturing.
Starting Page	241
Ending Page	247
Page Count	7
File Format	PDF
ISSN	09478396
Journal	Applied Physics A
Volume Number	119
Issue Number	1
e-ISSN	14320630
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-12-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Condensed Matter Physics Optical and Electronic Materials Nanotechnology Characterization and Evaluation of Materials Surfaces and Interfaces, Thin Films Operating Procedures, Materials Treatment
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Science

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