scholarly journals Quasi-static and dynamic deformation of an in-situ Ti-based metallic glass composite in supercooled liquid region

2016 ◽  
Vol 679 ◽  
pp. 239-246 ◽  
Author(s):  
J. Bai ◽  
J.S. Li ◽  
J. Wang ◽  
X. Xie ◽  
R. Feng ◽  
...  
Keyword(s):  
Metallic Glass ◽  
Dynamic Deformation ◽  
Supercooled Liquid ◽  
Supercooled Liquid Region ◽  
Liquid Region ◽  
Glass Composite

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

2006 ◽  
Vol 313 ◽  
pp. 25-30 ◽  
Author(s):  
Pee Yew Lee ◽  
C. Lo ◽  
Jason S.C. Jang ◽  
J.C. Huang
Keyword(s):  
Metallic Glass ◽  
Applied Pressure ◽  
Supercooled Liquid ◽  
Supercooled Liquid Region ◽  
Glassy Matrix ◽  
Liquid Region ◽  
Glass Composite ◽  
Composite Powders ◽  
Glass Composites ◽  
Bulk Nanocrystalline

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.

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