The influence of near service environmental conditions on the corrosion and LCF behaviour of a beta-stabilized γ-TiAl alloy
Löffl C, Saage H, Göken M (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 175
Article Number: 108885
DOI: 10.1016/j.corsci.2020.108885
Abstract
The damage behaviour of the TiAl alloy Ti-43.5Al-4Nb-1Mo-0.1B was investigated by isothermal thermogravimetric-analysis (TGA) and strain controlled low-cycle-fatigue (LCF) experiments at high temperature. Aluminium depletion and the formation of a continuous brittle layer in the subsurface zone takes place in synthetic exhaust gas. Contrary, a continuous ductile γ-phase forms in the subsurface zone in air. Since a continuous TiN layer as diffusion barrier is not formed in the early stages of corrosion, strong hardening is observed in LCF test samples in exhaust gas and a strain amplitude of 0,6 %, leading to a significant reduction of the cycles to failure.
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Germany (DE)How to cite
APA:
Löffl, C., Saage, H., & Göken, M. (2020). The influence of near service environmental conditions on the corrosion and LCF behaviour of a beta-stabilized γ-TiAl alloy. Corrosion Science, 175. https://doi.org/10.1016/j.corsci.2020.108885
MLA:
Löffl, Christian, Holger Saage, and Mathias Göken. "The influence of near service environmental conditions on the corrosion and LCF behaviour of a beta-stabilized γ-TiAl alloy." Corrosion Science 175 (2020).
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