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Statements

Subject Item
n2:RIV%2F44555601%3A13420%2F13%3A43885507%21RIV14-MSM-13420___
rdf:type
skos:Concept n11:Vysledek
rdfs:seeAlso
http://link.springer.com/article/10.1007%2Fs11015-013-9770-5#
dcterms:description
Homogenizing annealing is a method of heat treatment that entails keeping a semifinished product at a high temperature close to the liquidus temperature (roughly 0.7-0.8 of the melting point) to eliminate chemical heterogeneity through diffusion processes. Segregation is caused by selective crystallization, which results in a gradual change in the composition of the solid phase. During cooling of the ingot, low temperatures initiate the growth of crystal nuclei in accordance with the general laws that govern crystallization. As a result, each solidified layer has a different chemical composition. The concentrations of the elements in the solid phase are low initially and very high at the end. The susceptibility of the alloy to crystalline segregation is greater, the wider the range of temperatures over which it crystallizes and the greater the horizontal distance between the liquidus and solidus lines. The crystalline structure also becomes more nonuniform with an increase in the concentration of the alloying elements. In the experimental alloys studied in this investigation, the degree of nonuniformity increased when the content of the alloying elements was between 6 and 9%. Crystalline segregation can be eliminated by diffusion of the elements during homogenizing annealing Homogenizing annealing is a method of heat treatment that entails keeping a semifinished product at a high temperature close to the liquidus temperature (roughly 0.7-0.8 of the melting point) to eliminate chemical heterogeneity through diffusion processes. Segregation is caused by selective crystallization, which results in a gradual change in the composition of the solid phase. During cooling of the ingot, low temperatures initiate the growth of crystal nuclei in accordance with the general laws that govern crystallization. As a result, each solidified layer has a different chemical composition. The concentrations of the elements in the solid phase are low initially and very high at the end. The susceptibility of the alloy to crystalline segregation is greater, the wider the range of temperatures over which it crystallizes and the greater the horizontal distance between the liquidus and solidus lines. The crystalline structure also becomes more nonuniform with an increase in the concentration of the alloying elements. In the experimental alloys studied in this investigation, the degree of nonuniformity increased when the content of the alloying elements was between 6 and 9%. Crystalline segregation can be eliminated by diffusion of the elements during homogenizing annealing
dcterms:title
Evaluating the Effect of Homogenization Temperature and Time on the Microstructure of Alloy AlCu4MgMn by Electron Microscopy and x-Ray Fluorescence Analysis Evaluating the Effect of Homogenization Temperature and Time on the Microstructure of Alloy AlCu4MgMn by Electron Microscopy and x-Ray Fluorescence Analysis
skos:prefLabel
Evaluating the Effect of Homogenization Temperature and Time on the Microstructure of Alloy AlCu4MgMn by Electron Microscopy and x-Ray Fluorescence Analysis Evaluating the Effect of Homogenization Temperature and Time on the Microstructure of Alloy AlCu4MgMn by Electron Microscopy and x-Ray Fluorescence Analysis
skos:notation
RIV/44555601:13420/13:43885507!RIV14-MSM-13420___
n11:predkladatel
n18:orjk%3A13420
n3:aktivita
n13:S
n3:aktivity
S
n3:cisloPeriodika
57
n3:dodaniDat
n12:2014
n3:domaciTvurceVysledku
n8:1305581 n8:8776997
n3:druhVysledku
n14:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
73523
n3:idVysledku
RIV/44555601:13420/13:43885507
n3:jazykVysledku
n17:eng
n3:klicovaSlova
crystalline structure, homogenization, x-Ray Fluorescence Analysis, AlCu4MgMn
n3:klicoveSlovo
n9:homogenization n9:crystalline%20structure n9:AlCu4MgMn n9:x-Ray%20Fluorescence%20Analysis
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[23A4B0E7B8FF]
n3:nazevZdroje
Metallurgist
n3:obor
n15:JG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n12:2013
n3:svazekPeriodika
5-6/2013
n3:tvurceVysledku
Kvapilová, Ingrid Weiss, Viktorie
n3:wos
000289694900010
s:issn
0026-0894
s:numberOfPages
7
n4:doi
10.1007/s11015-013-9770-5
n16:organizacniJednotka
13420