About: SANS investigation of γ´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy

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About: SANS investigation of γ´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 – 780 MPa / 750 – 950°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 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. 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 – 780 MPa / 750 – 950°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 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. (en)
Title	SANS investigation of γ´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy SANS investigation of γ´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy (en)
skos:prefLabel	SANS investigation of γ´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy SANS investigation of γ´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy (en)
skos:notation	RIV/26316919:_____/10:#0000223!RIV11-MSM-26316919
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM2631691901)
http://linked.open...iv/cisloPeriodika	January
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Zrník, Jozef
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	COMTES FHT a.s.
http://linked.open...dnocenehoVysledku	286352
http://linked.open...ai/riv/idVysledku	RIV/26316919:_____/10:#0000223
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Nickel base superalloy, single crystal, creep, structure, neutron diffraction, SANS (en)
http://linked.open.../riv/klicoveSlovo	SANS creep single crystal structure Nickel base superalloy neutron diffraction
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[0C2B535585CE]
http://linked.open...i/riv/nazevZdroje	Materials Science Forum
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	636-637
http://linked.open...iv/tvurceVysledku	Zrník, Jozef
http://linked.open...n/vavai/riv/zamer	Kovové materiály se strukturou v submikronové a nanometrické oblasti připravené metodami intenzivní plastické deformace
issn	1662-9752
number of pages	8 (xsd:int)

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