Electro-sinter-forged Ni–Ti alloy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F16%3APU115415" target="_blank" >RIV/00216305:26620/16:PU115415 - isvavai.cz</a>
Result on the web
<a href="http://dx.doe.org/10.1016/j.intermet.2015.08.016" target="_blank" >http://dx.doe.org/10.1016/j.intermet.2015.08.016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.intermet.2015.08.016" target="_blank" >10.1016/j.intermet.2015.08.016</a>
Alternative languages
Result language
angličtina
Original language name
Electro-sinter-forged Ni–Ti alloy
Original language description
An innovative powder metallurgical process (Electro-Sinter-Forging – ESF) has been applied to a gas atomized Ni–Ti powder to avoid the typical drawbacks of the conventional industrial processing of this material: oxygen pick up, high processing temperature and slow cooling rate. At the same time, the ESF allows to overcome the low sintering activity of the Ni–Ti powders. Sintered materials, produced by using different processing conditions, are characterized and compared. Results concerning the thermal, structural, microstructural and mechanical analyses are reported and discussed. The density of the sintered samples increases by increasing the amount of applied energy and final pressure during the sintering process. The sample showing the highest density has a direct phase transformation on heating and cooling, with broad DSC peaks, and small thermal hysteresis; it is austenitic at room temperature, with a low amount of coarse (micrometric) precipitates, Ti4Ni2Ox nanometric precipitates and high hardness. The ESF sintering at highest energies induces a “band-type” microstructure with a preferential crystallographic orientation; the crystallographic texture of the sintered samples has been investigated through Electron Back Scattering Diffraction (EBSD) analysis and a fiber texture <100> has been evidenced. The ion release from the sintered samples has been investigated: it is comparable to commercial Ni–Ti alloys currently used and it is correlated to the sample porosity. The biocompatibility has been demonstrated towards fibroblasts.
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
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: Central european institute of technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERMETALLICS
ISSN
0966-9795
e-ISSN
1879-0216
Volume of the periodical
68
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
31-41
UT code for WoS article
000364896500006
EID of the result in the Scopus database
2-s2.0-84941892824