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 KonferenzbandBegutachtung


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.

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
PublikationsstatusVeröffentlicht - Jan. 2021
Veranstaltung11th International Conference on Processing & Manufacturing of Advanced Material: THERMEC 2021 - Virtual Program, Virtuell, Österreich
Dauer: 1 Juni 20215 Juni 2021


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


Konferenz11th International Conference on Processing & Manufacturing of Advanced Material
KurztitelTHERMEC' 2021

ASJC Scopus subject areas

  • Physik der kondensierten Materie
  • Werkstoffmechanik
  • Maschinenbau
  • Werkstoffwissenschaften (insg.)

Fields of Expertise

  • Advanced Materials Science

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