| Автор | Yang, Y. S. |
| Автор | Wu, S. K. |
| Дата выпуска | 1992 |
| dc.description | AbstractTransmission electron microscopic study on a α<sub>2</sub> + γ two-phases Ti-40 at.% Al alloy demonstrates that (011)<sub>γ</sub>/(101)<sub>γ</sub> twin does occur in TiAl. Differently-orientated γ regions are observed to coexist within the same γ lamella with the (011)<sub>γ</sub>/(101)<sub>γ</sub> twin plane as their boundary. The variants pair corresponding to these differently-orientated γ regions should come from variants which have the same stacking sequence. The mechanism for the formation of (011)<sub>γ</sub>/(101)<sub>γ</sub> twin plane is suggested to grow from the ‘APB-induced fault’ formed in the γ lamella during the precipitation transformation of α<sub>2</sub>→α<sub>2</sub> + γ. Total strain induced by the structure change (h.c.p.→f.c.c.) and by the tetragonality of γ phase during the precipitation transformation can be minimized by a composite of {111}<sub>γ</sub> and {011}<sub>γ</sub> twins coexisting in γ lamellae. |
| Формат | application.pdf |
| Издатель | Taylor & Francis Group |
| Копирайт | Copyright Taylor and Francis Group, LLC |
| Название | (011)<sub>γ</sub>/(101)<sub>γ</sub> order twin of γ lamella in a Ti-40 at.% Al alloy |
| Тип | research-article |
| DOI | 10.1080/01418619208201476 |
| Electronic ISSN | 1460-6992 |
| Print ISSN | 0141-8610 |
| Журнал | Philosophical Magazine A |
| Том | 65 |
| Первая страница | 15 |
| Последняя страница | 28 |
| Аффилиация | Yang, Y. S.; Institute of Materials Science and Engineering, National Taiwan University |
| Аффилиация | Wu, S. K.; Institute of Materials Science and Engineering, National Taiwan University |
| Выпуск | 1 |
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