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Statements

Subject Item
n2:RIV%2F26722445%3A_____%2F10%3A%230000564%21RIV11-MSM-26722445
rdf:type
n3:Vysledek skos:Concept
dcterms:description
The creep degraded nickel base single crystal superalloy CMSX-4 of two axial orientations [001] and [111] was investigated with aim to assess the structure degradation. Constant load creep tests were conducted in the stress/temperature ranges of 250–780 MPa/750 – 50°C resulting in rupture time variation from 50 to 4000 hours. A combination of scanning electron microscopy (SEM) and non-destructive small-angle neutron scattering method (SANS) was used to investigate the directional coarsening (rafting) of the gamma prime (γ') precipitates in relation to the stress and temperature applied as well as to the initial crystallographic orientation of the specimens. The SANS results are discussed in terms of the correlation with the raft development, the axial orientation of specimen, the creep parameters and the mechanical properties. The creep degraded nickel base single crystal superalloy CMSX-4 of two axial orientations [001] and [111] was investigated with aim to assess the structure degradation. Constant load creep tests were conducted in the stress/temperature ranges of 250–780 MPa/750 – 50°C resulting in rupture time variation from 50 to 4000 hours. A combination of scanning electron microscopy (SEM) and non-destructive small-angle neutron scattering method (SANS) was used to investigate the directional coarsening (rafting) of the gamma prime (γ') precipitates in relation to the stress and temperature applied as well as to the initial crystallographic orientation of the specimens. The SANS results are discussed in terms of the correlation with the raft development, the axial orientation of specimen, the creep parameters and the mechanical properties.
dcterms:title
SANS investigation of y' precipitate morphology evolution in creep exposed single crystal ni base superalloy SANS investigation of y' precipitate morphology evolution in creep exposed single crystal ni base superalloy
skos:prefLabel
SANS investigation of y' precipitate morphology evolution in creep exposed single crystal ni base superalloy SANS investigation of y' precipitate morphology evolution in creep exposed single crystal ni base superalloy
skos:notation
RIV/26722445:_____/10:#0000564!RIV11-MSM-26722445
n5:aktivita
n14:Z
n5:aktivity
Z(MSM2672244501)
n5:cisloPeriodika
2010
n5:dodaniDat
n13:2011
n5:domaciTvurceVysledku
n10:2458985
n5:druhVysledku
n7:J
n5:duvernostUdaju
n12:S
n5:entitaPredkladatele
n17:predkladatel
n5:idSjednocenehoVysledku
286354
n5:idVysledku
RIV/26722445:_____/10:#0000564
n5:jazykVysledku
n9:eng
n5:klicovaSlova
creep; neutron diffraction; Nickel Base Superalloy; Single Crystal; Small Angle Neutron Scattering
n5:klicoveSlovo
n6:creep n6:Nickel%20Base%20Superalloy n6:Small%20Angle%20Neutron%20Scattering n6:neutron%20diffraction n6:Single%20Crystal
n5:kodStatuVydavatele
CH - Švýcarská konfederace
n5:kontrolniKodProRIV
[876BAED96F9C]
n5:nazevZdroje
Materials Science Forum
n5:obor
n15:BG
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
4
n5:rokUplatneniVysledku
n13:2010
n5:svazekPeriodika
636-637
n5:tvurceVysledku
Strunz, Pavel
n5:zamer
n16:MSM2672244501
s:issn
1662-9752
s:numberOfPages
8