About: Microstructural changes in long-time thermally exposed Ni-base superalloy studied by SANS.

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About: Microstructural changes in long-time thermally exposed Ni-base superalloy studied by SANS. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The SANS experiment was a crucial part of a broader investigation of the long-time structural stability of the polycrystalline Ni-base superalloy and its effect on the subsequent creep characteristics. The results of the creep tests have shown that a long isothermal exposure at temperatures of 430degreesC and 650degreesC up to 25 000 h changed the deformation ability and creep life of the exposed specimens. While structure analyses (TEM) showed no evidence of a morphological and/or dimensional gamma' change, the SANS technique was able to reveal significant changes of the morphology of gamma' precipitates already after the shortest applied thermal exposition, 2000 h. The resulting size distributions, distance distributions, mean sizes and mean distances between the precipitates made evident that both the size and the distance increase in the bulk of the alloy with increasing thermal exposure even at such relatively low temperatures. The SANS experiment was a crucial part of a broader investigation of the long-time structural stability of the polycrystalline Ni-base superalloy and its effect on the subsequent creep characteristics. The results of the creep tests have shown that a long isothermal exposure at temperatures of 430degreesC and 650degreesC up to 25 000 h changed the deformation ability and creep life of the exposed specimens. While structure analyses (TEM) showed no evidence of a morphological and/or dimensional gamma' change, the SANS technique was able to reveal significant changes of the morphology of gamma' precipitates already after the shortest applied thermal exposition, 2000 h. The resulting size distributions, distance distributions, mean sizes and mean distances between the precipitates made evident that both the size and the distance increase in the bulk of the alloy with increasing thermal exposure even at such relatively low temperatures. (en)
Title	Microstructural changes in long-time thermally exposed Ni-base superalloy studied by SANS. Microstructural changes in long-time thermally exposed Ni-base superalloy studied by SANS. (en)
skos:prefLabel	Microstructural changes in long-time thermally exposed Ni-base superalloy studied by SANS. Microstructural changes in long-time thermally exposed Ni-base superalloy studied by SANS. (en)
skos:notation	RIV/61389005:_____/02:49033122!RIV/2004/AV0/A49004/N
http://linked.open.../vavai/riv/strany	S1155;S1157
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z1048901)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Strunz, Pavel
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	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	653397
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/02:49033122
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SANS; superalloy (en)
http://linked.open.../riv/klicoveSlovo	SANS superalloy
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[82D99333CE0B]
http://linked.open...i/riv/nazevZdroje	APPLIED PHYSICS. A-MATERIALS SCIENCE & PROCESSING
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...UplatneniVysledku	2002
http://linked.open...v/svazekPeriodika	74
http://linked.open...iv/tvurceVysledku	Strunz, Pavel Wiedenmann, A. Zrník, J. Horňák, P. Vrchovinksy, V.
http://linked.open...n/vavai/riv/zamer	Theoretical and experimental investigation of atomic nuclei and exploitation of nuclear methods in interdisciplinary research
issn	0947-8396
number of pages	3 (xsd:int)

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