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Statements

Subject Item
n2:RIV%2F25797000%3A_____%2F09%3A%230000265%21RIV12-GA0-25797000
rdf:type
skos:Concept n12:Vysledek
dcterms:description
The most promising materials for production of ADDT (Acceleration Driver Transmutation Technology) loop components for spent nuclear fuel transmutation are nickel superalloys. The excellent mechanical properties, creep resistance, corrosion resistance in an environment of fused fluoride salt and resistance against radiation embrittlement are required for these alloys. These alloys have to show good technological properties. The creep behaviour and high-temperature corrosion in molten fluoride salts of two experimental nickel alloys (MoNiCr type) and a comparative alloy (Hasteloy B type) have been investigated. The creep tests were performed at temperature 700 °C in stress range from 80 to 160 MPa. The longest times to rupture were achieved for samples after forging however the scatter of results was rather higher. Hasteloy B revealed slightly better creep resistance in comparison with alloys of MoNiCr types. The corrosion tests have been performed in a protection nitrogen/hydrogen atmosphere at a temperature of 710 °C in environment of molten mixture of NaF and LiF. The corrosion losses have been measured. The corrosion speeds of all alloys are on comparable level. Surface structure changes were observed using electron microscopy and microanalysis and corrosion mechanisms during tests were specified. The most promising materials for production of ADDT (Acceleration Driver Transmutation Technology) loop components for spent nuclear fuel transmutation are nickel superalloys. The excellent mechanical properties, creep resistance, corrosion resistance in an environment of fused fluoride salt and resistance against radiation embrittlement are required for these alloys. These alloys have to show good technological properties. The creep behaviour and high-temperature corrosion in molten fluoride salts of two experimental nickel alloys (MoNiCr type) and a comparative alloy (Hasteloy B type) have been investigated. The creep tests were performed at temperature 700 °C in stress range from 80 to 160 MPa. The longest times to rupture were achieved for samples after forging however the scatter of results was rather higher. Hasteloy B revealed slightly better creep resistance in comparison with alloys of MoNiCr types. The corrosion tests have been performed in a protection nitrogen/hydrogen atmosphere at a temperature of 710 °C in environment of molten mixture of NaF and LiF. The corrosion losses have been measured. The corrosion speeds of all alloys are on comparable level. Surface structure changes were observed using electron microscopy and microanalysis and corrosion mechanisms during tests were specified.
dcterms:title
CREEP AND CORROSION RESISTANCE OF NI-ALLOYS IN MOLTEN NAF A LIF SALT CREEP AND CORROSION RESISTANCE OF NI-ALLOYS IN MOLTEN NAF A LIF SALT
skos:prefLabel
CREEP AND CORROSION RESISTANCE OF NI-ALLOYS IN MOLTEN NAF A LIF SALT CREEP AND CORROSION RESISTANCE OF NI-ALLOYS IN MOLTEN NAF A LIF SALT
skos:notation
RIV/25797000:_____/09:#0000265!RIV12-GA0-25797000
n3:aktivita
n4:P
n3:aktivity
P(GA106/06/1352)
n3:dodaniDat
n7:2012
n3:domaciTvurceVysledku
n8:8203830 n8:1165518 n8:6500595 n8:3685462
n3:druhVysledku
n14:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
308511
n3:idVysledku
RIV/25797000:_____/09:#0000265
n3:jazykVysledku
n15:eng
n3:klicovaSlova
ADDT (Acceleration Driver Transmutation Technology)
n3:klicoveSlovo
n19:ADDT%20%28Acceleration%20Driver%20Transmutation%20Technology%29
n3:kontrolniKodProRIV
[798F25BDC198]
n3:mistoKonaniAkce
Hradec nad Moravicí
n3:mistoVydani
Ostrava
n3:nazevZdroje
METAL 2009
n3:obor
n13:JG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
6
n3:projekt
n16:GA106%2F06%2F1352
n3:rokUplatneniVysledku
n7:2009
n3:tvurceVysledku
Brenner, Otakar Hakl, Jan Vlasák, Tomáš Kasl, Josef Cizner, Josef
n3:typAkce
n20:WRD
n3:zahajeniAkce
2009-01-01+01:00
s:numberOfPages
6
n9:hasPublisher
Tanger, Ltd
n11:isbn
978-80-87294-10-9