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Statements

Subject Item
n2:RIV%2F61389005%3A_____%2F12%3A00388190%21RIV13-AV0-61389005
rdf:type
n6:Vysledek skos:Concept
dcterms:description
In the development of new high-temperature alloys for gas turbine applications various candidates are under consideration. This contribution deals with a CoRe based alloy strengthened by Cr23C6 type carbide and Cr2Re3 type phase precipitations (here designated as CoRe-1 alloy). High-temperature cycling experiments show how the influence of heating, cooling and the hcp <-> fcc phase transformation of the Co-matrix on the stability of these phases. Neutron diffraction experiments with high-temperature vacuum furnace show that Cr23C6 carbides starts to dissolve around 1100 degrees C and above 1250 degrees C are almost completely dissolved. On the other hand sigma phase is still present at 1300 degrees C. This contribution describes the evolution of the different phases during the heating and cooling cycles which are repeated two times. Further, the influence of boron addition to CoRe-1 alloy was studied for samples in the first heating/cooling cycle. A newly developed tensile rig was also tested up to 980 degrees C to combine in situ loading and heating for the neutron diffraction measurements. In the development of new high-temperature alloys for gas turbine applications various candidates are under consideration. This contribution deals with a CoRe based alloy strengthened by Cr23C6 type carbide and Cr2Re3 type phase precipitations (here designated as CoRe-1 alloy). High-temperature cycling experiments show how the influence of heating, cooling and the hcp <-> fcc phase transformation of the Co-matrix on the stability of these phases. Neutron diffraction experiments with high-temperature vacuum furnace show that Cr23C6 carbides starts to dissolve around 1100 degrees C and above 1250 degrees C are almost completely dissolved. On the other hand sigma phase is still present at 1300 degrees C. This contribution describes the evolution of the different phases during the heating and cooling cycles which are repeated two times. Further, the influence of boron addition to CoRe-1 alloy was studied for samples in the first heating/cooling cycle. A newly developed tensile rig was also tested up to 980 degrees C to combine in situ loading and heating for the neutron diffraction measurements.
dcterms:title
Stability of phases at high temperatures in CoRe based alloys being developed for ultra-high temperature applications Stability of phases at high temperatures in CoRe based alloys being developed for ultra-high temperature applications
skos:prefLabel
Stability of phases at high temperatures in CoRe based alloys being developed for ultra-high temperature applications Stability of phases at high temperatures in CoRe based alloys being developed for ultra-high temperature applications
skos:notation
RIV/61389005:_____/12:00388190!RIV13-AV0-61389005
n6:predkladatel
n8:ico%3A61389005
n3:aktivita
n17:I n17:P
n3:aktivity
I, P(FR-TI1/378)
n3:cisloPeriodika
012052
n3:dodaniDat
n11:2013
n3:domaciTvurceVysledku
n18:2458985
n3:druhVysledku
n16:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
170824
n3:idVysledku
RIV/61389005:_____/12:00388190
n3:jazykVysledku
n4:eng
n3:klicovaSlova
neutron diffraction; Co-base alloy; electron microscopy
n3:klicoveSlovo
n7:Co-base%20alloy n7:electron%20microscopy n7:neutron%20diffraction
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[78E271E08B58]
n3:nazevZdroje
Journal of Physics: Conference Series
n3:obor
n9:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
6
n3:projekt
n19:FR-TI1%2F378
n3:rokUplatneniVysledku
n11:2012
n3:svazekPeriodika
340
n3:tvurceVysledku
Strunz, Pavel Holzel, M. Hofmann, M. Rösler, J. Mukherji, D. Gilles, R.
n3:wos
000301288200052
s:issn
1742-6588
s:numberOfPages
9
n14:doi
10.1088/1742-6596/340/1/012052