| Autor: |
Li Mei Cha, Helmut Clemens, Zaoli Zhang, Gerhard Dehm |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Advanced Materials Research. :1365-1368 |
| ISSN: |
1662-8985 |
| DOI: |
10.4028/www.scientific.net/amr.146-147.1365 |
| Popis: |
In-situ heating transmission electron microscopy (TEM) was employed to investigate the initial stage of lamellae formation in a high Nb containing γ-TiAl based alloy. A Ti-45Al-7.5Nb alloy (at %), which was heat treated and quenched in a non-equilibrium state such that the matrix consists of ordered a2 grains, was annealed inside a TEM up to 750 °C. The in-situ TEM study reveals that g laths precipitate in the a2 matrix at ~ 750 °C possessing the classical Blackburn orientation relationship, i.e. (0001)a2 // (111)g and [11-20]a2 // |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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