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Statements

Subject Item
n2:RIV%2F25877950%3A_____%2F13%3A%230000062%21RIV14-MPO-25877950
rdf:type
skos:Concept n11:Vysledek
dcterms:description
The paper presents new results obtained from the evaluation of the chemical composition, microcleanliness and structure of the 90-ton heavy ingot cast in two successive heats, in which the content of Cu and Ni was intentionally modified in order to assess the degree of mutual mixing of the two heats in the ingot volume during the steel casting and solidification. For determination of chemical composition, spectral analysis and LECO were used. Microcleanliness evaluation was carried out on a Hitachi microanalytical complex equipped with the energy-dispersive spectrometer Vantage. To assess the composition of oxide non-metallic inclusions ternary diagrams were used. Structure of the basic steel matrix was induced by etching. The evaluation showed that in the casting of two successive heats, a certain degree of inhomogeneity of chemical composition, especially in the lower part of the ingot can be assumed in case of different composition. A greater segregation of sulphur in the central top part of the ingot was also detected. However, microcleanliness of the entire ingot is in general very good with low proportions of non-metallic inclusions. The paper presents new results obtained from the evaluation of the chemical composition, microcleanliness and structure of the 90-ton heavy ingot cast in two successive heats, in which the content of Cu and Ni was intentionally modified in order to assess the degree of mutual mixing of the two heats in the ingot volume during the steel casting and solidification. For determination of chemical composition, spectral analysis and LECO were used. Microcleanliness evaluation was carried out on a Hitachi microanalytical complex equipped with the energy-dispersive spectrometer Vantage. To assess the composition of oxide non-metallic inclusions ternary diagrams were used. Structure of the basic steel matrix was induced by etching. The evaluation showed that in the casting of two successive heats, a certain degree of inhomogeneity of chemical composition, especially in the lower part of the ingot can be assumed in case of different composition. A greater segregation of sulphur in the central top part of the ingot was also detected. However, microcleanliness of the entire ingot is in general very good with low proportions of non-metallic inclusions.
dcterms:title
Evaluation of the Chemical Composition and Microcleanliness of the Steel Samples from the Heavy Forging Ingot Evaluation of the Chemical Composition and Microcleanliness of the Steel Samples from the Heavy Forging Ingot
skos:prefLabel
Evaluation of the Chemical Composition and Microcleanliness of the Steel Samples from the Heavy Forging Ingot Evaluation of the Chemical Composition and Microcleanliness of the Steel Samples from the Heavy Forging Ingot
skos:notation
RIV/25877950:_____/13:#0000062!RIV14-MPO-25877950
n11:predkladatel
n14:ico%3A25877950
n5:aktivita
n17:P
n5:aktivity
P(ED0040/01/01), P(FR-TI3/243)
n5:cisloPeriodika
4
n5:dodaniDat
n7:2014
n5:domaciTvurceVysledku
n12:2559315
n5:druhVysledku
n18:J
n5:duvernostUdaju
n6:S
n5:entitaPredkladatele
n19:predkladatel
n5:idSjednocenehoVysledku
73676
n5:idVysledku
RIV/25877950:_____/13:#0000062
n5:jazykVysledku
n16:eng
n5:klicovaSlova
heavy steel ingot; microcleanliness; inclusion; microstructure; macrostructure
n5:klicoveSlovo
n9:macrostructure n9:microstructure n9:microcleanliness n9:heavy%20steel%20ingot n9:inclusion
n5:kodStatuVydavatele
PL - Polská republika
n5:kontrolniKodProRIV
[89869C1E83D0]
n5:nazevZdroje
Archives of Metallurgy and Materials
n5:obor
n8:JG
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
4
n5:projekt
n10:FR-TI3%2F243 n10:ED0040%2F01%2F01
n5:rokUplatneniVysledku
n7:2013
n5:svazekPeriodika
58
n5:tvurceVysledku
Michalek, Karel Gryc, Karel Machovčák, Pavel Tkadlečková, Markéta
s:issn
1733-3490
s:numberOfPages
7
n13:doi
10.2478/amm-2013-0142