Abstract
The evolution of the structural phase states in the Tantalum coatings formed on the NiTi substrate and their change before and after low energy high current pulsed electron beam treatment has been investigated by using X-ray diffraction technique. It was found that in the Tantalum coating reflections of cubic α-Ta and β-Ta tetragonal phases, with a predominance of α-Ta phase (~ 65 vol.%) were observed. The layer between the coating and the NiTi substrate composed of the phase with a bcc structure based on Ta-O with an oxygen concentration of CO ≈ 13 atm.%. After LEHCPEB at E = 15. J/cm2 of coated samples in addition to the B2, α-Ta and -Ta phases the martensite phase B19' was detected in the surface layer. It was revealed that after the treatment of samples a uniform layer consisting mainly of Tantalum with no clearly defined boundaries between the coating and the NiTi substrate was formed on the surface.
| Original language | English |
|---|---|
| Title of host publication | Materials Today |
| Subtitle of host publication | Proceedings |
| Publisher | Elsevier Ltd |
| Pages | S901-S904 |
| Volume | 2 |
| DOIs | |
| Publication status | Published - 1 Jan 2015 |
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Keywords
- Low-energy high-current electron beams
- Nickel-titanium alloy
- Structural phase states
- Tantalum coating
- X-ray diffraction analysis
ASJC Scopus subject areas
- Materials Science(all)
Cite this
X-ray analysis of the structure-phase states of the tantalum coating on NiTi substrate treated by electron beams. / Ostapenko, M. G.; Meisner, L. L.; Zakharova, M. A.; Gudimova, E. Yu.
Materials Today: Proceedings. Vol. 2 Elsevier Ltd, 2015. p. S901-S904.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - X-ray analysis of the structure-phase states of the tantalum coating on NiTi substrate treated by electron beams
AU - Ostapenko, M. G.
AU - Meisner, L. L.
AU - Zakharova, M. A.
AU - Gudimova, E. Yu
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The evolution of the structural phase states in the Tantalum coatings formed on the NiTi substrate and their change before and after low energy high current pulsed electron beam treatment has been investigated by using X-ray diffraction technique. It was found that in the Tantalum coating reflections of cubic α-Ta and β-Ta tetragonal phases, with a predominance of α-Ta phase (~ 65 vol.%) were observed. The layer between the coating and the NiTi substrate composed of the phase with a bcc structure based on Ta-O with an oxygen concentration of CO ≈ 13 atm.%. After LEHCPEB at E = 15. J/cm2 of coated samples in addition to the B2, α-Ta and -Ta phases the martensite phase B19' was detected in the surface layer. It was revealed that after the treatment of samples a uniform layer consisting mainly of Tantalum with no clearly defined boundaries between the coating and the NiTi substrate was formed on the surface.
AB - The evolution of the structural phase states in the Tantalum coatings formed on the NiTi substrate and their change before and after low energy high current pulsed electron beam treatment has been investigated by using X-ray diffraction technique. It was found that in the Tantalum coating reflections of cubic α-Ta and β-Ta tetragonal phases, with a predominance of α-Ta phase (~ 65 vol.%) were observed. The layer between the coating and the NiTi substrate composed of the phase with a bcc structure based on Ta-O with an oxygen concentration of CO ≈ 13 atm.%. After LEHCPEB at E = 15. J/cm2 of coated samples in addition to the B2, α-Ta and -Ta phases the martensite phase B19' was detected in the surface layer. It was revealed that after the treatment of samples a uniform layer consisting mainly of Tantalum with no clearly defined boundaries between the coating and the NiTi substrate was formed on the surface.
KW - Low-energy high-current electron beams
KW - Nickel-titanium alloy
KW - Structural phase states
KW - Tantalum coating
KW - X-ray diffraction analysis
UR - http://www.scopus.com/inward/record.url?scp=84955491148&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955491148&partnerID=8YFLogxK
U2 - 10.1016/j.matpr.2015.07.427
DO - 10.1016/j.matpr.2015.07.427
M3 - Chapter
AN - SCOPUS:84955491148
VL - 2
SP - S901-S904
BT - Materials Today
PB - Elsevier Ltd
ER -