Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-Alloy

Robert Josef Enzinger, Martin Luckabauer, Tetsu Ichitsubo, Roland Würschum

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

In the most relevant technical β-titanium alloys, the extensive formation of the metastable ω-phase during common heat treatments has been a long-standing problem due to the deteriorating effect of this phase on the material properties. By means of dilatometry, the formation of the isothermal ω-phase has been investigated during ageing a Ti-21at.-%V-sample at 300 °C. A model has been developed, which allows to quantitatively correlate the maximum length changes appearing upon ageing to changes occurring at the microscopic scale, i.e. variations of the lattice constants, phase fractions and concentrations of vanadium in the phases appearing. The length change predicted by the model is in very good accordance with the data measured paving the way for further kinetic discussion and ultimately for deriving kinetic parameters.

Originalspracheenglisch
TitelTHERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications
Redakteure/-innenMihail Ionescu, Christof Sommitsch, Cecilia Poletti, Ernst Kozeschnik, Tara Chandra
Seiten1851-1856
Seitenumfang6
DOIs
PublikationsstatusVeröffentlicht - Jan 2021
VeranstaltungInternational Conference on Processing and Manufacturing of Advanced Materials: Thermec 2021 - Virtual, Vienna, Österreich
Dauer: 10 Mai 202114 Mai 2021
http://www.thermec2020.tugraz.at

Publikationsreihe

NameMaterials Science Forum
Herausgeber (Verlag)Trans Tech Publications Ltd.
Band1016
ISSN (Print)0255-5476

Konferenz

KonferenzInternational Conference on Processing and Manufacturing of Advanced Materials
KurztitelTHERMEC 2021
LandÖsterreich
OrtVirtual, Vienna
Zeitraum10/05/2114/05/21
Internetadresse

ASJC Scopus subject areas

  • !!Condensed Matter Physics
  • !!Mechanics of Materials
  • !!Mechanical Engineering
  • !!Materials Science(all)

Fields of Expertise

  • Advanced Materials Science

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