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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F11%3A10108724%21RIV12-MSM-11320___
rdf:type
skos:Concept n5:Vysledek
dcterms:description
Ti-6Al-4V alloy was subjected to electric discharge machining (EDM) as a surface treatment process. Several experimental investigations have been undertaken in order to assess whether EDM process is a viable surface treatment technique for application in orthopaedics. The surface roughness, chemical alterations of surface and osteointegration in vitro have been studied. EDM with relatively high peak currents induced sufficient surface roughness and created carbon enriched surface layer for improved osteointegration. Tensile properties are not substantially varied by EDM, however EDM has detrimental effect on fatigue endurance. Poor fatigue performance of material after EDM process irrespective of its original microstructure can be attributed to surface microcracks, brittle oxidized surface recast layer, internal tensile stresses and notch sensitivity of titanium alloys. These detrimental effects can be partly avoided by subsequent heat treatments. Microstructural changes of surface and subsurface layers have been observed by means of scanning electron microscopy. Fatigue performance is found to be the main limit for potential application of EDM process in orthopedics. Ti-6Al-4V alloy was subjected to electric discharge machining (EDM) as a surface treatment process. Several experimental investigations have been undertaken in order to assess whether EDM process is a viable surface treatment technique for application in orthopaedics. The surface roughness, chemical alterations of surface and osteointegration in vitro have been studied. EDM with relatively high peak currents induced sufficient surface roughness and created carbon enriched surface layer for improved osteointegration. Tensile properties are not substantially varied by EDM, however EDM has detrimental effect on fatigue endurance. Poor fatigue performance of material after EDM process irrespective of its original microstructure can be attributed to surface microcracks, brittle oxidized surface recast layer, internal tensile stresses and notch sensitivity of titanium alloys. These detrimental effects can be partly avoided by subsequent heat treatments. Microstructural changes of surface and subsurface layers have been observed by means of scanning electron microscopy. Fatigue performance is found to be the main limit for potential application of EDM process in orthopedics.
dcterms:title
Electric discharge machining of Ti-6Al-4V alloy for biomedical use Electric discharge machining of Ti-6Al-4V alloy for biomedical use
skos:prefLabel
Electric discharge machining of Ti-6Al-4V alloy for biomedical use Electric discharge machining of Ti-6Al-4V alloy for biomedical use
skos:notation
RIV/00216208:11320/11:10108724!RIV12-MSM-11320___
n5:predkladatel
n6:orjk%3A11320
n3:aktivita
n8:S n8:P
n3:aktivity
P(ME09012), S
n3:dodaniDat
n10:2012
n3:domaciTvurceVysledku
n9:2958244 n9:5648874 n9:5345553
n3:druhVysledku
n21:D
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
196986
n3:idVysledku
RIV/00216208:11320/11:10108724
n3:jazykVysledku
n19:eng
n3:klicovaSlova
biomedicine; Ti-6Al-4V alloy; Electric discharge machining
n3:klicoveSlovo
n13:biomedicine n13:Ti-6Al-4V%20alloy n13:Electric%20discharge%20machining
n3:kontrolniKodProRIV
[1668A83EB2A1]
n3:mistoKonaniAkce
Praha, Czechia
n3:mistoVydani
Praha, Czechia
n3:nazevZdroje
WDS'11 Proceedings of Contributed Papers, Part I
n3:obor
n18:BM
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n22:ME09012
n3:rokUplatneniVysledku
n10:2011
n3:tvurceVysledku
Janeček, Miloš Harcuba, Petr Stráský, Josef
n3:typAkce
n20:CST
n3:zahajeniAkce
2011-05-31+02:00
s:numberOfPages
5
n16:hasPublisher
Matfyzpress
n4:isbn
978-80-7378-184-2
n12:organizacniJednotka
11320