About: High temperature creep of Ni3Al based alloys with zirconium

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This paper is focused on evaluation of structural parameters of Ni3Al based intermetallic alloy with zirconium. Composition of experimental alloys is very diverse, aluminium content is 22 and 24 at.%, and zirconium content is 1 or 2 at.%. The samples were prepared by vacuum induction casting followed by casting into graphite mould. These castings were subjected to directional solidification by Bridgman’s method with vertical arrangement. Rate of directional solidification was 20 and 50 mm/h. The basic high temperature creep characteristics were determined. The following test parameters were chosen for uninterrupted creep tests – testing temperature of 900°C and applied nominal load of 200 MPa. The alloy with composition Ni-22Al-2Zr in directed state with the solidification rate of 20 mm/h has the rate of secondary creep differing by an order, approximately 1 x 10-8 s-1. The sample has also higher time to rupture. The structure has very important influence on high temperature mechanical characteristics. This paper is focused on evaluation of structural parameters of Ni3Al based intermetallic alloy with zirconium. Composition of experimental alloys is very diverse, aluminium content is 22 and 24 at.%, and zirconium content is 1 or 2 at.%. The samples were prepared by vacuum induction casting followed by casting into graphite mould. These castings were subjected to directional solidification by Bridgman’s method with vertical arrangement. Rate of directional solidification was 20 and 50 mm/h. The basic high temperature creep characteristics were determined. The following test parameters were chosen for uninterrupted creep tests – testing temperature of 900°C and applied nominal load of 200 MPa. The alloy with composition Ni-22Al-2Zr in directed state with the solidification rate of 20 mm/h has the rate of secondary creep differing by an order, approximately 1 x 10-8 s-1. The sample has also higher time to rupture. The structure has very important influence on high temperature mechanical characteristics. (en)
Title	High temperature creep of Ni3Al based alloys with zirconium High temperature creep of Ni3Al based alloys with zirconium (en)
skos:prefLabel	High temperature creep of Ni3Al based alloys with zirconium High temperature creep of Ni3Al based alloys with zirconium (en)
skos:notation	RIV/61989100:27360/11:86080908!RIV12-MSM-27360___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6198910013)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Malcharcziková, Jitka Pohludka, Martin Kursa, Miroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	202040
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/11:86080908
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	directional solidification; zirconium; Ni3Al based alloys; High temperature creep (en)
http://linked.open.../riv/klicoveSlovo	zirconium High temperature creep Ni3Al based alloys directional solidification
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[FB4866615AE5]
http://linked.open...i/riv/nazevZdroje	Hutnické listy
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	64
http://linked.open...iv/tvurceVysledku	Kursa, Miroslav Malcharcziková, Jitka Pohludka, Martin Michenka, Vít
http://linked.open...n/vavai/riv/zamer	Processes of preparation and properties of highly pure and structural defined special materials
issn	0018-8069
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	27360

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