Thermo-mechanical fatigue behaviour of the γ-TiAl alloy TNB-V5

Thermo-mechanical and isothermal fatigue tests were carried out on the γ-TiAl alloy TNB-V5 in the temperature range 400–800 °C under total-strain control. Cyclic deformation curves, stress–strain hysteresis loops and fatigue lives of tests under different temperature–strain cycles were evaluated. Th...

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Veröffentlicht in:	Scripta materialia 2006, Vol.54 (2), p.137-141
Hauptverfasser:	Roth, Marcel, Biermann, Horst
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Fatigue Intermetallic phases Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Thermo-mechanical fatigue Titanium aluminides
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Beschreibung
Zusammenfassung:	Thermo-mechanical and isothermal fatigue tests were carried out on the γ-TiAl alloy TNB-V5 in the temperature range 400–800 °C under total-strain control. Cyclic deformation curves, stress–strain hysteresis loops and fatigue lives of tests under different temperature–strain cycles were evaluated. The fatigue lives were well described by the Smith Watson Topper damage parameter.
ISSN:	1359-6462 1872-8456
DOI:	10.1016/j.scriptamat.2005.09.049