Microstructural Path of Recrystallization in an Electron Beam Melted Ta-10wt% Alloy

Article Preview

Abstract:

The recrystallization of an electron beam melted Ta-10wt%W alloy deformed by cold swaging with reductions in area of 41 and 95% and annealed between 1300 oC and 1700 oC is quantitatively described. The recrystallized volume fraction and the interface area per unit of volume are measured. From these quantities the microstructural path is analyzed. Based on the available measurements the nucleation and growth of recrystallization in this alloy is discussed. The kinetic analysis is difficult in this case due to the large initial grain size of the specimens.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 467-470)

Pages:

513-518

Citation:

Online since:

October 2004

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2004 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] H. R. Z. Sandim and F. Siciliano Jr.: Int. J. of Refractory Metals & Hard Materials, Vol. 14 (1996), p.257.

Google Scholar

[2] W. A. Johnson and R. F. Mehl: Trans AIME Vol. 135 (1939), p.416.

Google Scholar

[3] M. Avrami: J. Chem. Phys. Vol. 17 (1939), p.1103.

Google Scholar

[4] A. N. Kolmogorov: Izv. Akad. Nauk. USSR - Ser. Matemat. Vol. 1(3) (1937), p.355.

Google Scholar

[5] R. T. DeHoff in Annealing Processes - Recovery, Recrystallization and Grain Growth, Proceedings, Hansen, N.; Juul Jensen, D.; Leffers, T.; Ralph, B. (Eds), pp.35-52, Risø National Laboratory, Roskilde, Denmark, (1986).

Google Scholar

[6] R. A. Vandermeer and B. B. Rath: Metall. Trans Vol. 20A (1989), p.391.

Google Scholar

[7] J. C. Russ and R. T. Dehoff RT, Practical Stereology, 2 nd ed., Kluwer Academic, New York, (2000).

Google Scholar

[8] P. R. Rios and A. F. Padilha: Mater. Research Vol. 6 (2003), p.605.

Google Scholar

[9] P. R. Rios: Metall. Trans. Vol. 28A (1997), p.939.

Google Scholar

[10] P.R. Rios, J. J. S. Carvalho, T. C. Salazar, F. V. L. Paula and J. A. Castro: Cellular Automata Simulation of the Effect of Nuclei Distribution on the Recrystallization Kinetics, unpublished research.

DOI: 10.4028/www.scientific.net/msf.467-470.659

Google Scholar

[11] H. -P. Stüwe, A.F. Padilha and F. Siciliano Jr.: Mater. Sci. Eng. A Vol. A333 (2002), p.361.

Google Scholar