About: Affecting of dendritic microstructure of Ti-47Al by alloying with yttrium     Goto   Sponge   Distinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

AttributesValues
rdf:type
Description
  • Mechanical properties of alloys based on TiAl, especially toughness at room temperature and resistance to creep, depend significantly on the microstructure. Alloys with fully lamellar or nearly lamellar microstructure are characterized by higher resistance to creep and higher toughness, compared to alloys with duplex microstructure, but they have lower ductility and plasticity. Particularly low ductility at room temperature is a typical feature of γ-TiAl alloys, which prevents its wider use. Another drawback of these alloys is smaller oxidation resistance at the temperatures above 700 oC. Impurities, such as oxygen, cause drop in mechanical properties and it is very difficult to prevent contamination due to the high affinity between metals and oxygen. Alloying with a small amount of yttrium is one of the possibilities to improve oxidation resistance and mechanical properties of γ-TiAl alloys. The purpose of the present work is to investigate the effect of yttrium on the dendritic structure, particularly on the dendrite arm spacing of cast alloy TiAl. It is generally known, that reducing the dendrites arms spacing leads to an increase of mechanical properties and to reduction of segregation distances.
  • Mechanical properties of alloys based on TiAl, especially toughness at room temperature and resistance to creep, depend significantly on the microstructure. Alloys with fully lamellar or nearly lamellar microstructure are characterized by higher resistance to creep and higher toughness, compared to alloys with duplex microstructure, but they have lower ductility and plasticity. Particularly low ductility at room temperature is a typical feature of γ-TiAl alloys, which prevents its wider use. Another drawback of these alloys is smaller oxidation resistance at the temperatures above 700 oC. Impurities, such as oxygen, cause drop in mechanical properties and it is very difficult to prevent contamination due to the high affinity between metals and oxygen. Alloying with a small amount of yttrium is one of the possibilities to improve oxidation resistance and mechanical properties of γ-TiAl alloys. The purpose of the present work is to investigate the effect of yttrium on the dendritic structure, particularly on the dendrite arm spacing of cast alloy TiAl. It is generally known, that reducing the dendrites arms spacing leads to an increase of mechanical properties and to reduction of segregation distances. (en)
Title
  • Affecting of dendritic microstructure of Ti-47Al by alloying with yttrium
  • Affecting of dendritic microstructure of Ti-47Al by alloying with yttrium (en)
skos:prefLabel
  • Affecting of dendritic microstructure of Ti-47Al by alloying with yttrium
  • Affecting of dendritic microstructure of Ti-47Al by alloying with yttrium (en)
skos:notation
  • RIV/61989100:27360/11:86080868!RIV12-MSM-27360___
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(ED0040/01/01)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 184809
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27360/11:86080868
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • primary and secondary dendrite arms spacing; microstructure; TiAl alloys (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [78A0E058FFCA]
http://linked.open...v/mistoKonaniAkce
  • Ostrava
http://linked.open...i/riv/mistoVydani
  • Ostrava
http://linked.open...i/riv/nazevZdroje
  • Den interních doktorandů 2011 : sborník semináře Fakulty metalurgie a materiálového inženýrství : Vysoká škola báňská - Technická univerzita Ostrava, 6.12.2011
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Kursa, Miroslav
  • Čegan, Tomáš
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
http://purl.org/ne...btex#hasPublisher
  • Vysoká škola báňská - Technická univerzita Ostrava, Fakulta metalurgie a materiálového inženýrství
https://schema.org/isbn
  • 978-80-248-2523-6
http://localhost/t...ganizacniJednotka
  • 27360
is http://linked.open...avai/riv/vysledek of
Faceted Search & Find service v1.16.118 as of Jun 21 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 117 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software