BULK AMORPHOUS AND NANOSTRUCTURED MATERIALS BY HIGH ENERGY BALL MILLING

2008 ◽  
Vol 22 (18n19) ◽  
pp. 2905-2913 ◽  
Author(s):  
CONSTANTIN POLITIS
Keyword(s):  
Ball Milling ◽  
Nanostructured Materials ◽  
Metallic Glasses ◽  
Amorphous Alloys ◽  
Glassy State ◽  
High Strength ◽  
Supercooled Liquid ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Energy Ball

Mechanical alloying by high energy ball milling is a promising method for the production of bulk metallic glasses, amorphous alloys and nanostructured materials. Amorphous alloys reinforced by nanocrystals represent a big step in the optimization of new ultra high strength materials. Nano-scale W-Y solid solutions were synthesized by high energy ball milling. Only 1 at. % oxygen can stabilize the bulk metallic glassy state of Zr 54 Cu 19 Ni 8 Al 8 Si 5 Ti 5 O 1 to higher T x and to large supercooled liquid range Δ T xg .

Crystallisation and polymorphic transformations in Fe–Zr amorphous alloys obtained by high-energy ball milling

2004 ◽  
Vol 350 (1-3) ◽  
pp. E1075-E1077 ◽  
Author(s):  
P Gorria ◽  
J.S Garitaonandia ◽  
R Pizarro ◽  
D Martı́nez-Blanco ◽  
J Campo ◽  
...  
Keyword(s):  
Ball Milling ◽  
Amorphous Alloys ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Polymorphic Transformations ◽  
Energy Ball

Preparation of Dispersion Strengthened Aluminum Alloy by High Energy Ball Milling

2012 ◽  
Vol 602-604 ◽  
pp. 598-601
Author(s):  
Hui Qin Cao ◽  
Ji Luo ◽  
Wei Wei Yang
Keyword(s):  
Aluminum Alloy ◽  
Ball Milling ◽  
High Strength ◽  
Oxide Dispersion Strengthened ◽  
High Energy ◽  
High Energy Ball Milling ◽  
Spatial Distance ◽  
2024 Aluminum Alloy ◽  
Energy Ball ◽  
Al2o3 Particles

In order to develop a high-strength aluminum alloy, alumina dispersion strengthened aluminum alloy was prepared by high energy ball milling on 2024 aluminum alloy powder in ethanol. The microstructure, particle size and distribution of the Al2O3 particles in the alloy were analyzed by FE-SEM; the mechanical properties were investigated. Results showed that alumina dispersion strengthened aluminum alloy was prepared successfully by high energy ball milling, the Al2O3 particles of several tens of nm in diameter were homogeneously distributed in the matrix grain and the spatial distance between particles was about 50-100nm. The yield strength and elongation of alumina oxide dispersion strengthened aluminum alloy were 489MPa and 7.9%.

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