The effect of nitrogen saturation on the corrosion behaviour of Ti-35Nb-7Zr-5Ta beta titanium alloy nitrided by ion implantation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00324719" target="_blank" >RIV/68407700:21220/19:00324719 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/19:00509467 RIV/60461373:22310/19:43919585
Result on the web
<a href="https://doi.org/10.1016/j.surfcoat.2018.11.004" target="_blank" >https://doi.org/10.1016/j.surfcoat.2018.11.004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfcoat.2018.11.004" target="_blank" >10.1016/j.surfcoat.2018.11.004</a>
Alternative languages
Result language
angličtina
Original language name
The effect of nitrogen saturation on the corrosion behaviour of Ti-35Nb-7Zr-5Ta beta titanium alloy nitrided by ion implantation
Original language description
Corrosion behaviour of Ti-35Nb-7Zr-5Ta β titanium alloy nitrided by ion implantation was examined. Nitrogen ions were implanted with different fluences in the range from 1.10^17 to 9.10^17 cm-2 and an accelerating voltage of 90 kV. The specific effects of the nitrogen fluence on structural changes of the implantation zone showed the relationship between nitrogen concentration, nitride formation and corrosion behaviour. Nitrogen depth profiles measured by glow discharge optical emission spectroscopy showed the saturation limit approx. 60 at.% leading to the exo-diffusion of nitrogen. X-ray photoelectron spectroscopy indicated increasing formation of surface nitrides with the fluence of implanted nitrogen, up to the saturation fluence of 4 . 10^17 cm-2. Oversaturation induced a decrease in nitrogen concentration, accompanied by a reduction in the amount of surface nitrides, and accompanied by blistering. The corrosion tests in physiological saline solution show high resistance of the implanted surfaces to corrosion attack. The corrosion resistance increased with increasing fluence up to saturation fluence. Fluences higher than saturation one caused decrease of the corrosion resistance to the level of lower fluences. All nitrogen implanted surfaces showed higher resistance than non-implanted surface. The surface nitriding has no influence on the susceptibility to the localized corrosion attack. The formation of surface nitrides and their concentration, rather than the defects of an oversaturated surface, affect the corrosion behaviour.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20506 - Coating and films
Result continuities
Project
<a href="/en/project/GA16-22276S" target="_blank" >GA16-22276S: Nitrogen doped titanium materials: A study of temperature-dependent doping in radiation-damaged matrix</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Surface and Coatings Technology
ISSN
0257-8972
e-ISSN
1879-3347
Volume of the periodical
358
Issue of the periodical within the volume
January
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
144-152
UT code for WoS article
000456762300017
EID of the result in the Scopus database
2-s2.0-85056655052