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

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

doi:10.4028/www.scientific.net/msf.1016.1851

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

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

Institute of Materials Physics (5170)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

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.

Original language	English
Title of host publication	THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications
Editors	Mihail Ionescu, Christof Sommitsch, Cecilia Poletti, Ernst Kozeschnik, Tara Chandra
Pages	1851-1856
Number of pages	6
DOIs	https://doi.org/10.4028/www.scientific.net/msf.1016.1851
Publication status	Published - Jan 2021
Event	11th International Conference on Processing & Manufacturing of Advanced Material: THERMEC 2021 - Virtual Program, Virtuell, Austria Duration: 1 Jun 2021 → 5 Jun 2021 http://www.thermec2020.tugraz.at https://www.tugraz.at/events/thermec-2021/home/

Publication series

Name	Materials Science Forum
Publisher	Trans Tech Publications Ltd.
Volume	1016
ISSN (Print)	0255-5476

Conference

Conference	11th International Conference on Processing & Manufacturing of Advanced Material
Abbreviated title	THERMEC' 2021
Country/Territory	Austria
City	Virtuell
Period	1/06/21 → 5/06/21
Other	Processing, Fabrication, Properties, Applications
Internet address	http://www.thermec2020.tugraz.at https://www.tugraz.at/events/thermec-2021/home/

Keywords

Dilatometry
Isothermal ω-phase formation
Spinodale decomposition
Titanium-vanadium alloy
β-stabilised titanium alloy

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
General Materials Science

Fields of Expertise

Advanced Materials Science

Access to Document

10.4028/www.scientific.net/msf.1016.1851

Cite this

Enzinger, R. J., Luckabauer, M., Ichitsubo, T., & Würschum, R. (2021). Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-Alloy. In M. Ionescu, C. Sommitsch, C. Poletti, E. Kozeschnik, & T. Chandra (Eds.), THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications (pp. 1851-1856). (Materials Science Forum; Vol. 1016). https://doi.org/10.4028/www.scientific.net/msf.1016.1851

Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-Alloy. / Enzinger, Robert Josef; Luckabauer, Martin; Ichitsubo, Tetsu et al.
THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications. ed. / Mihail Ionescu; Christof Sommitsch; Cecilia Poletti; Ernst Kozeschnik; Tara Chandra. 2021. p. 1851-1856 (Materials Science Forum; Vol. 1016).

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Enzinger, RJ, Luckabauer, M, Ichitsubo, T & Würschum, R 2021, Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-Alloy. in M Ionescu, C Sommitsch, C Poletti, E Kozeschnik & T Chandra (eds), THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications. Materials Science Forum, vol. 1016, pp. 1851-1856, 11th International Conference on Processing & Manufacturing of Advanced Material, Virtuell, Austria, 1/06/21. https://doi.org/10.4028/www.scientific.net/msf.1016.1851

Enzinger RJ, Luckabauer M, Ichitsubo T, Würschum R. Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-Alloy. In Ionescu M, Sommitsch C, Poletti C, Kozeschnik E, Chandra T, editors, THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications. 2021. p. 1851-1856. (Materials Science Forum). doi: 10.4028/www.scientific.net/msf.1016.1851

Enzinger, Robert Josef ; Luckabauer, Martin ; Ichitsubo, Tetsu et al. / Modelling Dilatometry Data of Isothermal ω-Phase Formation in a Strongly β-Stabilised TiV-Alloy. THERMEC 2021 - International Conference on Processing and Manufacturing of Advanced Materials Processing, Fabrication, Properties, Applications. editor / Mihail Ionescu ; Christof Sommitsch ; Cecilia Poletti ; Ernst Kozeschnik ; Tara Chandra. 2021. pp. 1851-1856 (Materials Science Forum).

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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.",

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N2 - 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.

AB - 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.

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KW - Spinodale decomposition

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KW - β-stabilised titanium alloy

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Fields of Expertise

Access to Document

Other files and links

Fingerprint

Defects & Transformations of Materials

Cite this

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

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Fields of Expertise

Access to Document

Other files and links

Fingerprint

Projects

Defects & Transformations of Materials

Cite this