Investigation on the Morphological Instability during Directional Solidification of a Transparent Alloy during Sounding Rocket Flights

Abstract:

Article Preview

The movement and morphological change of a solid-liquid interface in directional solidification was investigated during two sounding rocket flights. By using the transparent binary alloy Succinonitrile-Acetone the dynamic processes at the solidification front could be observed directly. Both the planar interface growth, the onset of instability and the characteristic features of the interface morphology, i.e. the evolution of the primary spacing and amplitudes of the cells and dendrites were evaluated. The comparison with a calculation of the morphological instability based on the theoretical model of Warren and Langer showed a good agreement concerning the critical time and velocity of the solidification front.

Info:

Periodical:

Edited by:

A Roósz, M. Rettenmayr and Z. Gácsi

Pages:

463-472

DOI:

10.4028/www.scientific.net/MSF.508.463

Citation:

A. Weiß et al., "Investigation on the Morphological Instability during Directional Solidification of a Transparent Alloy during Sounding Rocket Flights ", Materials Science Forum, Vol. 508, pp. 463-472, 2006

Online since:

March 2006

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.