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  • Bylo provedeno studium vlivu vodíku na mikrostrukturní a mechanické vlastnosti slitin na bázi TiAl a NiTi. Vzorky polykrystalických slitin byly studovány v různém stavu mikrostruktury: dodaném nebo žíhaném v průtoku argonu nebo vodíku. Vzorky byly tepelně zpracovány při teplotě 750 °C po dobu 4 hodin u slitin Ti-46Al-1.5Mo-0.2C a Ti-44Al-8Nb, respektive při 850 °C po dobu 1 hodiny u slitin NiTi, NiTi-Cu a NiTi-Fe. Pozorování mikrostruktury TiAl-slitin bylo provedeno pomocí optické a elektronové rastrovací mikroskopie a doplněno měřením mikrotvrdosti. Dráty NiTi-slitiny byly zkoušeny v tahu při pokojové teplotě a rychlosti deformace 3 x 10-4 s-1 na vzduchu lomové plochy byly studovány pomocí SEM. Topografií AFM martenzitické struktury NiTi, jakož i lamelární struktury TiAl slitin byl sledován vliv vodíku na mikrostrukturu. Množství vodíku bylo stanoveno měřením v desorpčním vakuovém zařízení při teplotě 700 °C. (cs)
  • Study of hydrogen effect on microstructure and mechanical features of TiAl- and NiTi-based alloys was performed. Specimens of polycrystalline alloys were observed in following states: as-received and after heat treatments in different atmospheres. The annealing in flowing argon or hydrogen gas was realised at 750°C for 4 hours in case of Ti-46Al-1.5Mo-0.2C and Ti-44Al-8Nb alloys and at 850°C for 1 hour in case of NiTi, NiTi-Cu and NiTi-Fe alloys. Microstructure was studied using light and scanning electron microscopies. Measurements of microhardness completed the metallographic study of Ti-Al based alloys. The NiTi wires were tensile tested in air at room temperature and strain rate of 3 x 10-4 s-1 and fracture surfaces were observed using SEM. AFM topography of martensite plates in NiTi as well as of lamellar structure in TiAl studied in order to determine the hydrogen influence. The quantity of hydrogen was determined by gas desorption at 700°C in vacuum desorption apparatus.
  • Study of hydrogen effect on microstructure and mechanical features of TiAl- and NiTi-based alloys was performed. Specimens of polycrystalline alloys were observed in following states: as-received and after heat treatments in different atmospheres. The annealing in flowing argon or hydrogen gas was realised at 750°C for 4 hours in case of Ti-46Al-1.5Mo-0.2C and Ti-44Al-8Nb alloys and at 850°C for 1 hour in case of NiTi, NiTi-Cu and NiTi-Fe alloys. Microstructure was studied using light and scanning electron microscopies. Measurements of microhardness completed the metallographic study of Ti-Al based alloys. The NiTi wires were tensile tested in air at room temperature and strain rate of 3 x 10-4 s-1 and fracture surfaces were observed using SEM. AFM topography of martensite plates in NiTi as well as of lamellar structure in TiAl studied in order to determine the hydrogen influence. The quantity of hydrogen was determined by gas desorption at 700°C in vacuum desorption apparatus. (en)
Title
  • Effect of hydrogen on the microstructure features of Ti based alloys
  • Vliv vodíku na mikrostrukturní vlastnosti Ti slitin (cs)
  • Effect of hydrogen on the microstructure features of Ti based alloys (en)
skos:prefLabel
  • Effect of hydrogen on the microstructure features of Ti based alloys
  • Vliv vodíku na mikrostrukturní vlastnosti Ti slitin (cs)
  • Effect of hydrogen on the microstructure features of Ti based alloys (en)
skos:notation
  • RIV/61989100:27360/07:00016300!RIV09-MSM-27360___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM6198910013)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 418958
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27360/07:00016300
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • TiAl-based alloy; NiTi-based alloy; hydrogen effect; hydrogen embrittlement (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [C9DDAA495632]
http://linked.open...v/mistoKonaniAkce
  • Hradec nad Moravicí
http://linked.open...i/riv/mistoVydani
  • Ostrava
http://linked.open...i/riv/nazevZdroje
  • METAL 2007
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Losertová, Monika
  • Szurman, Ivo
  • Dostál, Vladimír
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • Tanger s.r.o.
https://schema.org/isbn
  • 978-80-86840-33-8
http://localhost/t...ganizacniJednotka
  • 27360
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