Mg-Y-Cu Bulk Nanocrystalline Matrix Composites Containing WC Particles

Abstract:

Article Preview

The preparation of Mg49Y15Cu36 metallic glass composite powders was accomplished by mechanical alloying of pure Mg, Y, Cu, and WC powder mixture after 10 h milling. In the ball-milled composites, initial WC particles were homogeneously dispersed in the Mg-based alloy glassy matrix. The metallic glass composites powders were found to exhibit a large supercooled liquid region before crystallization. Bulk metallic glass composites were formed by vacuum hot pressing the as-milled WC/ Mg49Y15Cu36 metallic glass composite powders at 473 K in the pressure range of 0.72-1.20 GPa. BMG composite with submicron WC particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared under pressure of 1.20 GPa. It was found that the applied pressure during consolidation could enhance the thermal stability and promotes nanocrystallization of WC/ Mg49Y15Cu36 BMG composites.

Info:

Periodical:

Edited by:

Chi Y.A. Tsao and Jing Kun Guo

Pages:

25-30

DOI:

10.4028/www.scientific.net/KEM.313.25

Citation:

P. Y. Lee et al., "Mg-Y-Cu Bulk Nanocrystalline Matrix Composites Containing WC Particles", Key Engineering Materials, Vol. 313, pp. 25-30, 2006

Online since:

July 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.