Advanced metallography techniques of sample preparation: Microstructure analysis of phase transformation after thermal treatment in commercially pure Ti

Gärtnerová Viera - Struers GmbH (Czech Republic)

Due to low specific density, excellent mechanical properties and corrosion resistance, Titanium is commonly used in different applications such as medicine, chemistry, transport and aerospace industry. Despite generally outstanding properties, Ti belong to difficult-to-work material, which also make metallography very challenging task.
In this contribution, we intend to show mechanical, mechanical-chemical and chemical routes for successful metallography of commercially pure (cp) Ti with duplex structure, which was obtained by appropriate thermal treatment. The two phases in cp-Ti significantly differ in mechanical properties, which make metallography very tricky and further emphasize sensitivity to the proper choice of processing conditions for successful observation via light microscopy (LM), scanning electron microscopy (SEM) combined with electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM).
The aim of this presentation is to demonstrate that combination of advanced metallography techniques and expertise in difficult-to-work material may result in required information even for techniques such as SEM-EBSD.

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