Автор |
Liu, Y. |
Автор |
Mazumder, J. |
Автор |
Robertson, B. W. |
Автор |
Tewari, S. |
Дата выпуска |
1996 |
dc.description |
AbstractThe dislocation structure, the dislocation dissociation and the Burgers vectors in laser clad NbAl<sub>3</sub> on a Nb substrate were investigated by transmission electron microscopy including weak beam contrast analysis by the g.b equals; 0 criterion, contrast width associated with edge and screw dislocations and high resolution electron microscopy (HREM). High densities of dislocations were observed in NbAl, grains. Contrast analysis by the g.b equals; 0 criterion and contrast width showed the presence of [010] and [001] dislocations. HREM revealed many ½[010] (partial) edge dislocations and ½[001] (partial) edge dislocations, suggesting the didocation dissociation modes: [010]→½[010] + ½[010] and [001]→½[001] +½[001]. It is suggested that such dislocations were introduced by the rapid cooling at high temperatures involved in the laser cladding process. |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Название |
[010] and [001] dislocations in laser clad NbAl<sub>3</sub> on Nb |
Тип |
research-article |
DOI |
10.1080/01418619608242983 |
Electronic ISSN |
1460-6992 |
Print ISSN |
0141-8610 |
Журнал |
Philosophical Magazine A |
Том |
73 |
Первая страница |
557 |
Последняя страница |
566 |
Аффилиация |
Liu, Y.; Center for Laser Aided Material Processing, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign; Department of Mechanical Engineering and Center for Materials Research, Analysi University of Nebraska-Lincoln |
Аффилиация |
Mazumder, J.; Center for Laser Aided Material Processing, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign |
Аффилиация |
Robertson, B. W.; Department of Mechanical Engineering and Center for Materials Research, Analysi University of Nebraska-Lincoln |
Аффилиация |
Tewari, S.; Center for Laser Aided Material Processing, Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign |
Выпуск |
3 |
Библиографическая ссылка |
Howie, A. and Whelan, M. J. 1962. Proc. Roy. Soc. A, 267: 206 |
Библиографическая ссылка |
Liu, Y., Mazumder, J. and Shibata, K. 1994. Metall. Mater. Trans, B., 25: 149 |
Библиографическая ссылка |
Liu, Y., Takasugi, T., Izumi, O. and Ono, S. 1989a. Phil. Mag. A, 59: 401 |
Библиографическая ссылка |
Liu, Y., Takasugi, T., Izumi, O. and Takahashi, T. 1989b. Phil. Mag. A, 59: 437 |
Библиографическая ссылка |
Shechtman, D. and Jacobson, L. A. 1974. Metall. Trans. A, 6: 1325 |
Библиографическая ссылка |
Sircar, S., Chattopadhyay, K. and Mazumder, J. 1992. Metall. Trans. A, 23: 2419 |
Библиографическая ссылка |
Yamaguchi, M., Umakoshi, Y. and Yamane, T. 1987. “High Temperature Ordered Intermetallic Alloys, II”. In Mater. Res. Soc. Proc., Vol. 81, 275Pittsburgh, PA: Materials Research Society. |