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Statements

Subject Item
n2:RIV%2F26316919%3A_____%2F11%3A%230000310%21RIV12-TA0-26316919
rdf:type
skos:Concept n16:Vysledek
dcterms:description
The paper deals with recrystallization conditions monitoring for MoNiCr nickel superalloy. The alloy is determined for modern concepts of nuclear reactors in which molten fluoride salts are used in the primary and/or secondary circuit as coolants. It represents a material with high corrosion resistance against fluoride salts and it has very good creep properties in the temperature range of interest for such a kind of reactors between 650 – 800 °C as well. The manufacture of vessels and fittings from MoNiCr alloy requires appropriate forming technology for this high-alloyed material. The key moment seems to be forming of the material cast state to the state of cast recrystallized microstructure with a homogenous fine grains. A kind of stress condition is besides temperature very important in the course of a hot forming of this type of hardly deformable materials. Forming with prevailing pressure state of stress increases probability that material can attain level of deformation allowing recovery and recrystallization processes without the material failure. Preceding cold deformation can essentially accelerate the recrystallization process. Investigation of forming condition influence on MoNiCr microstructure and thus its formability is performed here. The paper deals with recrystallization conditions monitoring for MoNiCr nickel superalloy. The alloy is determined for modern concepts of nuclear reactors in which molten fluoride salts are used in the primary and/or secondary circuit as coolants. It represents a material with high corrosion resistance against fluoride salts and it has very good creep properties in the temperature range of interest for such a kind of reactors between 650 – 800 °C as well. The manufacture of vessels and fittings from MoNiCr alloy requires appropriate forming technology for this high-alloyed material. The key moment seems to be forming of the material cast state to the state of cast recrystallized microstructure with a homogenous fine grains. A kind of stress condition is besides temperature very important in the course of a hot forming of this type of hardly deformable materials. Forming with prevailing pressure state of stress increases probability that material can attain level of deformation allowing recovery and recrystallization processes without the material failure. Preceding cold deformation can essentially accelerate the recrystallization process. Investigation of forming condition influence on MoNiCr microstructure and thus its formability is performed here.
dcterms:title
On Formability of MoNiCr Alloy On Formability of MoNiCr Alloy
skos:prefLabel
On Formability of MoNiCr Alloy On Formability of MoNiCr Alloy
skos:notation
RIV/26316919:_____/11:#0000310!RIV12-TA0-26316919
n16:predkladatel
n17:ico%3A26316919
n3:aktivita
n5:P
n3:aktivity
P(TA01020985)
n3:cisloPeriodika
295-297
n3:dodaniDat
n7:2012
n3:domaciTvurceVysledku
n14:5745225 n14:6226302 n14:1173529 n14:6585833 n14:2183803
n3:druhVysledku
n8:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
218022
n3:idVysledku
RIV/26316919:_____/11:#0000310
n3:jazykVysledku
n11:eng
n3:klicovaSlova
Ni-alloys, high temperature application, thermo-mechanical treatment
n3:klicoveSlovo
n9:high%20temperature%20application n9:Ni-alloys n9:thermo-mechanical%20treatment
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[AECCB8A71422]
n3:nazevZdroje
Advanced Materials Research
n3:obor
n15:JP
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n13:TA01020985
n3:rokUplatneniVysledku
n7:2011
n3:svazekPeriodika
2011
n3:tvurceVysledku
Dlouhý, Jaromír Džugan, Ján Podaný, Pavel Nový, Zbyšek Motyčka, Petr
s:issn
1662-8985
s:numberOfPages
7
n10:doi
10.4028/www.scientific.net/AMR.295-297.1731