"RIV/26316919:_____/10:#0000223" . . "Zrn\u00EDk, Jozef" . . . . "SANS investigation of \u03B3\u00B4 precipitate morphology evolution in creep exposed single crystal nickel base superalloy"@en . "SANS investigation of \u03B3\u00B4 precipitate morphology evolution in creep exposed single crystal nickel base superalloy" . "Nickel base superalloy, single crystal, creep, structure, neutron diffraction, SANS"@en . "CH - \u0160v\u00FDcarsk\u00E1 konfederace" . "[0C2B535585CE]" . "Materials Science Forum" . "RIV/26316919:_____/10:#0000223!RIV11-MSM-26316919" . "636-637" . . . . . . "Z(MSM2631691901)" . . "In order to assess the material degradation of exposed gas-turbine high-temperature components, the creep degraded CMSX-4 single-crystal nickel-base superalloy of two axial orientations [001] and [111] was investigated. Constant load creep tests were conducted in the stress/temperature ranges of 250 \u2013 780 MPa / 750 \u2013 950\u00B0C 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 \u03B3' 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." . . "SANS investigation of \u03B3\u00B4 precipitate morphology evolution in creep exposed single crystal nickel base superalloy"@en . "286352" . . . . . "4"^^ . . "SANS investigation of \u03B3\u00B4 precipitate morphology evolution in creep exposed single crystal nickel base superalloy" . "1"^^ . . "1662-9752" . . "January" . "In order to assess the material degradation of exposed gas-turbine high-temperature components, the creep degraded CMSX-4 single-crystal nickel-base superalloy of two axial orientations [001] and [111] was investigated. Constant load creep tests were conducted in the stress/temperature ranges of 250 \u2013 780 MPa / 750 \u2013 950\u00B0C 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 \u03B3' 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."@en . "8"^^ .