Microstructural and Phase Analysis of an Additively Manufactured Intermetallic TiAl Alloy using Metallographic Techniques and High-Energy X-Rays
| Autor: | Svea Mayer, Peter Staron, Helmut Clemens, Emad Maawad, Reinhold Wartbichler, Malina Jop |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Metallurgy Alloy Metals and Alloys Intermetallic 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Mechanics of Materials High-energy X-rays 0103 physical sciences engineering Low density 0210 nano-technology Phase analysis Aluminide |
| Zdroj: | Practical Metallography. 57:84-95 |
| ISSN: | 2195-8599 0032-678X |
| Popis: | Due to the unique combination of low density and their excellent properties-profile at elevated temperatures, intermetallic γ-titanium aluminide based alloys are a promising structural material for applications in aviation and the automotive industry. Additive manufacturing of a TiAl alloy of nominal composition Ti-48Al-2Cr-2Nb (in at. %), using electron beam melting, resulted in a banded and anisotropic microstructure. In this work, the present microstructure was examined by means of visible light and scanning electron microscopy with regard to morphology and phase distribution. Furthermore, a three-dimensional representation of the microstructure was generated based on differently oriented metallographic specimens. Phase analysis was performed using high-energy X-ray diffraction in order to quantitatively determine present phase fractions and to relate them to findings from microstructural analysis. |
| Databáze: | OpenAIRE |
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