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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F13%3A86089543%21RIV14-MSM-27360___
rdf:type
skos:Concept n6:Vysledek
dcterms:description
Three different nickel alloys - IC221M, IC396 and IC438 - were prepared by induction melting followed by centrifugal casting. Metallographic samples were made of bar castings. The samples were used for microstructure documentation, for porosity evaluation and for chemical composition verifying by scanning electron microscope. The bars of nickel alloys were machined to tensile specimens, which were strained at standard conditions. It has been confirmed that dendritic structure of cast nickel alloys is unsuitable. The castings contained large shrinks which caused premature fracture of tensile specimens. This result was opposed to tensile tests of directionally solidified samples because directional solidification orientates a structure and also reduces the presence of shrinks. Therefore, it is important to continue in searching of the processes which reduce a dendritic structure of nickel alloy castings. Three different nickel alloys - IC221M, IC396 and IC438 - were prepared by induction melting followed by centrifugal casting. Metallographic samples were made of bar castings. The samples were used for microstructure documentation, for porosity evaluation and for chemical composition verifying by scanning electron microscope. The bars of nickel alloys were machined to tensile specimens, which were strained at standard conditions. It has been confirmed that dendritic structure of cast nickel alloys is unsuitable. The castings contained large shrinks which caused premature fracture of tensile specimens. This result was opposed to tensile tests of directionally solidified samples because directional solidification orientates a structure and also reduces the presence of shrinks. Therefore, it is important to continue in searching of the processes which reduce a dendritic structure of nickel alloy castings.
dcterms:title
Structure and mechanical properties of nickel alloys Structure and mechanical properties of nickel alloys
skos:prefLabel
Structure and mechanical properties of nickel alloys Structure and mechanical properties of nickel alloys
skos:notation
RIV/61989100:27360/13:86089543!RIV14-MSM-27360___
n6:predkladatel
n7:orjk%3A27360
n4:aktivita
n12:P
n4:aktivity
P(ED0040/01/01)
n4:dodaniDat
n19:2014
n4:domaciTvurceVysledku
n8:6608787 n8:5028302 n8:2069776 n8:2890194
n4:druhVysledku
n5:D
n4:duvernostUdaju
n14:S
n4:entitaPredkladatele
n21:predkladatel
n4:idSjednocenehoVysledku
108386
n4:idVysledku
RIV/61989100:27360/13:86089543
n4:jazykVysledku
n22:eng
n4:klicovaSlova
nickel alloys, centrifugal casting, porosity, tensile test
n4:klicoveSlovo
n11:porosity n11:centrifugal%20casting n11:tensile%20test n11:nickel%20alloys
n4:kontrolniKodProRIV
[D30A74B4BE8C]
n4:mistoKonaniAkce
Brno
n4:mistoVydani
Ostrava
n4:nazevZdroje
METAL 2013 : 22nd International Conference on Metallurgy and Materials : conference proceedings : May 15th - 17th 2013, Hotel Voronez I, Brno Czech Republic, EU [CD-ROM]
n4:obor
n13:JG
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
5
n4:projekt
n15:ED0040%2F01%2F01
n4:rokUplatneniVysledku
n19:2013
n4:tvurceVysledku
Kursa, Miroslav Malcharcziková, Jitka Pohludka, Martin Michenka, V. Szurman, Ivo
n4:typAkce
n18:WRD
n4:zahajeniAkce
2013-05-15+02:00
s:numberOfPages
6
n16:hasPublisher
Tanger s.r.o.
n3:isbn
978-80-87294-41-3
n17:organizacniJednotka
27360