High temperature laser-scanning confocal microscopy for the in-situ investigation of grain growth and phase transformations in intermetallic γ-TiAl based alloys

Authors

Thomas Klein, MontanuniversitaetFollow
Salar Niknafs, University of WollongongFollow
Rian J. Dippenaar, University of WollongongFollow
Helmut Clemens, Montanuniversitat
Svea Mayer, Montanuniversität

RIS ID

100484

Publication Details

Klein, T., Niknafs, S., Dippenaar, R., Clemens, H. & Mayer, S. (2015). High temperature laser-scanning confocal microscopy for the in-situ investigation of grain growth and phase transformations in intermetallic γ-TiAl based alloys. Praktische Metallographie, 52 (5), 259-269.

Abstract

Solid-state phase transformations and grain growth in an intermetallic γ-TiAl based alloy were examined using a confocal laser-scanning microscope. This apparatus allows the in-situ visualization of the microstructural development at high temperatures. The sample is thus placed into a furnace and a predetermined temperature profile is followed, while the surface is scanned using a laser. The contrast is gained by the thermal etching.