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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F12%3A86082876%21RIV13-GA0-27360___
rdf:type
skos:Concept n10:Vysledek
dcterms:description
Purpose of this paper is to determine the temperatures of liquidus/solidus temperatures for multicomponent Fe-C-based alloys (industrially produced steel grades). The obtained results could be used in settings of conditions of steel casting and/or in the numerical simulations of processes occurring during casting and solidification of steel. Design/methodology/approach Two modern apparatus for dynamic thermal analysis were used. Measurements of liquidus/solidus temperatures were realized by two thermal analysis methods. Experiments by the differential scanning calorimetry were done using the new one Setaram Multi High Temperature Calorimeter with 3D sensor (smaller samples about 2.6 g). The direct thermal analysis was used for large samples (23 g) at the STA 449 F3 Jupiter equipment. Findings The differences between calculated and experimentally obtained values of liquidus/solidus temperatures were found. Also temperatures of solidification process are different than for “equilibrium” conditions.Research limitations/implications The obtained results are limited by the fact that range of realized experiments was devoted “only” to the two steel grades and only for “equilibrium” and for one cooling rate. The complexity of the solidification processes of such principally heterogeneous material (steel) needs to take into account much more aspect to quantify some leading dependencies of such processes. Practical implications Presented results will be implemented into steel production practice – lowering of superheating of steel during ingot casting. The obtained temperatures will be implemented also into numerical simulations of ingot solidification. Originality/value Two thermal analysis methods with different sample mass of steel was used under conditions of one research team. The direct cooperation between steel plant experts and university research team was applied. The utilization of results is the next phases of cooperated research of the authors. Purpose of this paper is to determine the temperatures of liquidus/solidus temperatures for multicomponent Fe-C-based alloys (industrially produced steel grades). The obtained results could be used in settings of conditions of steel casting and/or in the numerical simulations of processes occurring during casting and solidification of steel. Design/methodology/approach Two modern apparatus for dynamic thermal analysis were used. Measurements of liquidus/solidus temperatures were realized by two thermal analysis methods. Experiments by the differential scanning calorimetry were done using the new one Setaram Multi High Temperature Calorimeter with 3D sensor (smaller samples about 2.6 g). The direct thermal analysis was used for large samples (23 g) at the STA 449 F3 Jupiter equipment. Findings The differences between calculated and experimentally obtained values of liquidus/solidus temperatures were found. Also temperatures of solidification process are different than for “equilibrium” conditions.Research limitations/implications The obtained results are limited by the fact that range of realized experiments was devoted “only” to the two steel grades and only for “equilibrium” and for one cooling rate. The complexity of the solidification processes of such principally heterogeneous material (steel) needs to take into account much more aspect to quantify some leading dependencies of such processes. Practical implications Presented results will be implemented into steel production practice – lowering of superheating of steel during ingot casting. The obtained temperatures will be implemented also into numerical simulations of ingot solidification. Originality/value Two thermal analysis methods with different sample mass of steel was used under conditions of one research team. The direct cooperation between steel plant experts and university research team was applied. The utilization of results is the next phases of cooperated research of the authors.
dcterms:title
Study of Fe-C-Based alloys by dynamic methods of thermal analysis Study of Fe-C-Based alloys by dynamic methods of thermal analysis
skos:prefLabel
Study of Fe-C-Based alloys by dynamic methods of thermal analysis Study of Fe-C-Based alloys by dynamic methods of thermal analysis
skos:notation
RIV/61989100:27360/12:86082876!RIV13-GA0-27360___
n10:predkladatel
n11:orjk%3A27360
n3:aktivita
n13:S n13:P
n3:aktivity
P(ED0040/01/01), P(FR-TI3/243), P(GAP107/11/1566), S
n3:dodaniDat
n6:2013
n3:domaciTvurceVysledku
n9:7932235 n9:8607354 n9:9577890 n9:2995824 n9:7530099 n9:7743564 n9:5570794 n9:4491076
n3:druhVysledku
n15:O
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
172158
n3:idVysledku
RIV/61989100:27360/12:86082876
n3:jazykVysledku
n8:eng
n3:klicovaSlova
solidus temperatures; liquidus temperatures; thermal analysis; solidification; steel
n3:klicoveSlovo
n4:steel n4:liquidus%20temperatures n4:solidus%20temperatures n4:thermal%20analysis n4:solidification
n3:kontrolniKodProRIV
[A1213B596F35]
n3:obor
n18:JG
n3:pocetDomacichTvurcuVysledku
8
n3:pocetTvurcuVysledku
9
n3:projekt
n12:FR-TI3%2F243 n12:ED0040%2F01%2F01 n12:GAP107%2F11%2F1566
n3:rokUplatneniVysledku
n6:2012
n3:tvurceVysledku
Klus, Petr Žaludová, Monika Smetana, Bedřich Dobrovská, Jana Tkadlečková, Markéta Machovččák, Pavel Gryc, Karel Socha, Ladislav Michalek, Karel
n16:organizacniJednotka
27360