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Evolution of Structural-Phase States in TiNi Surface Layers Synthesized by Electron Beam Treatment
Joint Authors
Lotkov, A. I.
Neyman, A. A.
Meisner, L. L.
Mironov, Yu. P.
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-03-24
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Abstract EN
The paper presents the results of X-ray diffraction analysis of nonequilibrium structural and elastic stress states in TiNi surface layers irradiated by low-energy electron beams.
It is found that a surface layer with a mixed (2D columnar and 3D equiaxial) submicrocrystalline structure is formed on the irradiated side of the TiNi specimens, and the volume fractions of the two structure types depend on the beam energy parameters and number of pulses.
The B2 phase synthesized in the layer is characterized by lattice microstrain due to stresses of the first and second kinds (εI≈±1%, εII=0.25%), and the layer as such is an internal stress concentrator for underlying layers of the material.
In the intermediate layer beneath the stress concentrator, relaxation of irradiation-induced internal stress takes place.
It is shown that the main mechanism of the relaxation is partial B2→B19′ martensite transformation.
The B19′ martensite phase in the intermediate layer decreases the microstrain in the conjugate B2 phase.
The thickness of the layer in which the relaxation processes develop through the B2→B19′ martensite transformation is 10–15 μm.
American Psychological Association (APA)
Meisner, L. L.& Lotkov, A. I.& Mironov, Yu. P.& Neyman, A. A.. 2010. Evolution of Structural-Phase States in TiNi Surface Layers Synthesized by Electron Beam Treatment. Journal of Nanotechnology،Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-484478
Modern Language Association (MLA)
Meisner, L. L.…[et al.]. Evolution of Structural-Phase States in TiNi Surface Layers Synthesized by Electron Beam Treatment. Journal of Nanotechnology No. 2010 (2010), pp.1-8.
https://search.emarefa.net/detail/BIM-484478
American Medical Association (AMA)
Meisner, L. L.& Lotkov, A. I.& Mironov, Yu. P.& Neyman, A. A.. Evolution of Structural-Phase States in TiNi Surface Layers Synthesized by Electron Beam Treatment. Journal of Nanotechnology. 2010. Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-484478
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-484478