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| rdf:type
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| Description
| - Pro přípravu kvalitních monokrystalů nízkolegovaných slitin na bázi molybdenu i dalších vysokotavitelných kovů je nutné zkoumat vliv legujícího prvku na strukturní, mechanické a fyzikální vlastnosti monokrystalů a jeho chování během krystalizace za daných podmínek. Cílem experimentálních prací bylo posoudit vliv niobu na strukturní dokonalost monokrystalů molybdenu a jeho chování z hlediska segregačních charakteristik. Pro tento účel byly připraveny elektronovým zonálním tavením metodou floating zone monokrystaly nízkolegovaných slitin Mo-1.5 at.% Nb za různých podmínek krystalizace (1, 3, 5 mm/min), které byly podrobeny metalografické, chemické a rtg. analýze. Bylo zjištěno, že legování monokrystalů molybdenu niobem vedlo k drobení blokové struktury, tzn. zmenšení rozměrů subzrn a zvětšení úhlu desorientace jejich hranic. Současně se zvýšila i hustota dislokací. Z rtg. Laueogramů vyplývá, že monokrystaly těchto slitin byly připraveny s krystalografickou orientací osy růstu [110]. Provedená liniová ch (cs)
- When preparing quality single crystals of low-alloyed alloys on the base of molybdenum as well as other high melting metals, it is necessary to investigate influence of alloying elements on the single crystal structural, mechanical and physical properties and their behaviour during crystallization under given conditions. The aim of the present work was to evaluate the influence of niobium on structural perfection of single crystals of molybdenum and its behaviour from the view of segregation characteristics. For this purpose single crystals of low-alloyed alloys Mo-1.5 at.% Nb were prepared by the electron beam floating zone melting under various conditions of crystallization (1, 3, 5 mm/min). These single crystals were submitted to metallographical, chemical and X-ray analyses. It was found that alloying of molybdenum single crystals with niobium resulted in disintegration of block structure, i.e. reducing the sub-grain dimensions and increasing the angle of disorientation of their boundaries. Simul
- When preparing quality single crystals of low-alloyed alloys on the base of molybdenum as well as other high melting metals, it is necessary to investigate influence of alloying elements on the single crystal structural, mechanical and physical properties and their behaviour during crystallization under given conditions. The aim of the present work was to evaluate the influence of niobium on structural perfection of single crystals of molybdenum and its behaviour from the view of segregation characteristics. For this purpose single crystals of low-alloyed alloys Mo-1.5 at.% Nb were prepared by the electron beam floating zone melting under various conditions of crystallization (1, 3, 5 mm/min). These single crystals were submitted to metallographical, chemical and X-ray analyses. It was found that alloying of molybdenum single crystals with niobium resulted in disintegration of block structure, i.e. reducing the sub-grain dimensions and increasing the angle of disorientation of their boundaries. Simul (en)
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| Title
| - Segregation behaviour of niobium and its influence on structural characteristics of molybdenum single crystals prepared by electron beam floating zone melting
- Segregační chování niobu a jeho vliv na strukturní charakteristiky monokrystalů molybdenu připravených elektronovým zonálním tavením (cs)
- Segregation behaviour of niobium and its influence on structural characteristics of molybdenum single crystals prepared by electron beam floating zone melting (en)
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| skos:prefLabel
| - Segregation behaviour of niobium and its influence on structural characteristics of molybdenum single crystals prepared by electron beam floating zone melting
- Segregační chování niobu a jeho vliv na strukturní charakteristiky monokrystalů molybdenu připravených elektronovým zonálním tavením (cs)
- Segregation behaviour of niobium and its influence on structural characteristics of molybdenum single crystals prepared by electron beam floating zone melting (en)
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| skos:notation
| - RIV/61989100:27360/07:00016050!RIV09-MSM-27360___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GP106/06/P288), Z(MSM6198910013)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27360/07:00016050
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - tungsten; molybdenum; single crystal; electron beam floating zone melting; plasma metallurgy (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Acta Metallurgica Slovaca
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Drápala, Jaromír
- Štěpánek, Jan
- Bujnošková, K.
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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