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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F01%3A07013184%21RIV%2F2003%2FAV0%2FA07003%2FN
rdf:type
skos:Concept n11:Vysledek
dcterms:description
Creep data obtained for an equiaxed-.gamma. Ti-52at%oAl intermetallic compound at temperatures 1050, 1000 and 1150 K and applied stresses within 50-300 MPa are summarized. It is shown that after approximately 10% of transition strain,the creep behaviour of the pure-.gamma. phase can be rationalized in terms of substructure controlled creep. The transition strain is analysed in view of new microstructural observations. It has been verified again that the pre-heating treatment has a pronounced effecton the creep strain accumulation kinetics in the transition strain period. Microstructural changes associated with the pre-heating and subsequent creep are investigated by transmission electron microscopy (TEM). It is suggested that oxide particles, the size of which exceeds 1 .mu.m, facilitate the nucleation of twins. The pinning of dislocations by fine H-phase particles (-10 nm in size) is discussed. Creep data obtained for an equiaxed-.gamma. Ti-52at%oAl intermetallic compound at temperatures 1050, 1000 and 1150 K and applied stresses within 50-300 MPa are summarized. It is shown that after approximately 10% of transition strain,the creep behaviour of the pure-.gamma. phase can be rationalized in terms of substructure controlled creep. The transition strain is analysed in view of new microstructural observations. It has been verified again that the pre-heating treatment has a pronounced effecton the creep strain accumulation kinetics in the transition strain period. Microstructural changes associated with the pre-heating and subsequent creep are investigated by transmission electron microscopy (TEM). It is suggested that oxide particles, the size of which exceeds 1 .mu.m, facilitate the nucleation of twins. The pinning of dislocations by fine H-phase particles (-10 nm in size) is discussed.
dcterms:title
Microstructurally Based Understanding of the Ti-52atAl Creep Strength. Microstructurally Based Understanding of the Ti-52atAl Creep Strength.
skos:prefLabel
Microstructurally Based Understanding of the Ti-52atAl Creep Strength. Microstructurally Based Understanding of the Ti-52atAl Creep Strength.
skos:notation
RIV/68081723:_____/01:07013184!RIV/2003/AV0/A07003/N
n3:strany
321;330
n3:aktivita
n14:P n14:Z
n3:aktivity
P(IBS2041001), P(OC 522.100), Z(AV0Z2041904)
n3:dodaniDat
n7:2003
n3:domaciTvurceVysledku
n17:5076633 n17:3249514
n3:druhVysledku
n8:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
686923
n3:idVysledku
RIV/68081723:_____/01:07013184
n3:jazykVysledku
n10:eng
n3:klicovaSlova
intermetallics; gamma-TiAl; creep
n3:klicoveSlovo
n12:intermetallics n12:creep n12:gamma-TiAl
n3:kontrolniKodProRIV
[E1BDC9EDB4FE]
n3:mistoKonaniAkce
Swansea [GB]
n3:mistoVydani
London
n3:nazevZdroje
Creep and Fracture of Engineering Materials and Structures.
n3:obor
n19:JG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n9:IBS2041001 n9:OC%20522.100
n3:rokUplatneniVysledku
n7:2001
n3:tvurceVysledku
Kuchařová, Květa Dlouhý, Antonín
n3:typAkce
n21:WRD
n3:zahajeniAkce
2001-04-01+02:00
n3:zamer
n20:AV0Z2041904
s:numberOfPages
10
n16:hasPublisher
The Institute of Materials
n15:isbn
1-86125-144-0