"Non-destructive sans investigation of in 738 turbine blades after high-temperature operation"@en . . "Rogante, M." . . "Geneva" . "Luk\u00E1\u0161, Petr" . "Nedestruktivn\u00ED SANS vy\u0161et\u0159ov\u00E1n\u00ED 738 turbinov\u00FDch lopatek po pr\u00E1ci p\u0159i vysok\u00E9 teplot\u011B"@cs . . . "RIV/61389005:_____/03:00105647" . . "Neuveden" . . "RIV/61389005:_____/03:00105647!RIV/2005/GA0/A49005/N" . "618098" . "Marin\u010D\u00E1k, Vojt\u011Bch" . "Non-destructive sans investigation of in 738 turbine blades after high-temperature operation" . "6"^^ . "8"^^ . . "Ryukhtin, Vasyl" . "P(GA202/03/0891), P(KSK1010104)" . . "5"^^ . "Cassi, L." . "Non-destructive sans investigation of in 738 turbine blades after high-temperature operation"@en . . "Nedestruktivn\u00ED SANS vy\u0161et\u0159ov\u00E1n\u00ED 738 turbinov\u00FDch lopatek po pr\u00E1ci p\u0159i vysok\u00E9 teplot\u011B"@cs . "The gas reactor turbine blades produced from the Inconel 738 nickel-base superalloy were studied with the aim to assess the influence of high-temperature operation fatigue on the microstructure. High-resolution small-angle neutron scattering (SANS) provides an unique possibility of non-destructive characterization of precipitates in the blades. Two turbine blades in as-cast state and after operation were compared at different positions along their edge, where different thermal and stress loads are expected. Size distributions and relative volume fractions of gamma\u00B4-precipitates were evaluated from measured SANS spectra for each blade and individual position. It was found that the precipitate volume fraction increases towards the tip of both blades. The blade after operation exhibits a significant increase of the average size and volume of precipitates with respect to the as-cast blade, which can be explained by expected stronger precipitate coarsening under higher stresses. The prec..." . "Turbinov\u00E9 lopatky plynov\u00E9ho reaktoruvyroben\u00E9 ze super slitiny Inconel 738 na niklov\u00E9 b\u00E1zi jsou studov\u00E1ny s c\u00EDlem zjistit vliv \u00FAnavy prac\u00ED p\u0159i vysok\u00E9 teplot\u011B na mikrostrukturu."@cs . "Non-destructive sans investigation of in 738 turbine blades after high-temperature operation" . "\u0160aroun, Jan" . . . . "[641ADEE94040]" . . "The gas reactor turbine blades produced from the Inconel 738 nickel-base superalloy were studied with the aim to assess the influence of high-temperature operation fatigue on the microstructure. High-resolution small-angle neutron scattering (SANS) provides an unique possibility of non-destructive characterization of precipitates in the blades. Two turbine blades in as-cast state and after operation were compared at different positions along their edge, where different thermal and stress loads are expected. Size distributions and relative volume fractions of gamma\u00B4-precipitates were evaluated from measured SANS spectra for each blade and individual position. It was found that the precipitate volume fraction increases towards the tip of both blades. The blade after operation exhibits a significant increase of the average size and volume of precipitates with respect to the as-cast blade, which can be explained by expected stronger precipitate coarsening under higher stresses. The prec..."@en . . "Neuveden" . . . "6"^^ . "Non-destructive sans investigation of in 738 turbine blades after high-temperature operation" . "Ceschini, G. F." . . . "Strunz, Pavel" . . "superalloy;SANS"@en .