Influence of Sn Addition on the Amorphization and Thermal Stability of CuTiZrNi Powders Processed by Mechanical Alloying

Abstract:

Article Preview

The influence of Sn addition on the amorphization of CuTiZrNi alloys processed by mechanical alloying of a mixture of pure elemental powder was studied. The thermal stability and crystallization behaviour of the amorphous mechanically alloyed powders was determined and compared with rapidly quenched ribbons with the same nominal chemical compositions. X-ray diffraction and differential scanning calorimetry were employed as the experimental techniques for samples characterization. Both applied samples preparation techniques resulted in the formation of fully amorphous Cu47Ti34Zr11Ni8 and Cu37Sn10Ti34Zr11Ni8 alloys. However, significant differences in thermal stability and crystallization behaviour have been found, depending not only on the alloy composition, but on the fabrication method as well. The observed influence of Sn addition was more evident for the ribbons, resulting in the change of the number of crystallization effects, their temperatures and activation energy of crystallization. For mechanically alloyed powders these changes were not so dramatic.

Info:

Periodical:

Materials Science Forum (Volumes 636-637)

Edited by:

Luís Guerra ROSA and Fernanda MARGARIDO

Pages:

917-921

DOI:

10.4028/www.scientific.net/MSF.636-637.917

Citation:

D. Oleszak and T. Kulik, "Influence of Sn Addition on the Amorphization and Thermal Stability of CuTiZrNi Powders Processed by Mechanical Alloying", Materials Science Forum, Vols. 636-637, pp. 917-921, 2010

Online since:

January 2010

Export:

Price:

$35.00

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

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