Injection molding metallic glass

Advances in alloy development have produced the Zr 35Ti 30Be 27.5Cu 7.5 alloy with a crystallization–glass transition temperature, ΔT, of 165 °C. This alloy’s large supercooled liquid region provides the longest processing times and lowest processing viscosities of any metallic glass and was injecti...

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Bibliographic Details
Published in:Scripta materialia 2009-02, Vol.60 (3), p.160-163
Main Authors: Wiest, Aaron, Harmon, John S., Demetriou, Marios D., Dale Conner, R., Johnson, William L.
Format: Article
Language:English
Subjects:
Alloy development
Amorphous materials
Beams (structural)
Bulk amorphous materials
Injection molding
Liquids
Metallic glasses
Standard deviation
Thermoplastic forming
Transition temperature
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Summary:Advances in alloy development have produced the Zr 35Ti 30Be 27.5Cu 7.5 alloy with a crystallization–glass transition temperature, ΔT, of 165 °C. This alloy’s large supercooled liquid region provides the longest processing times and lowest processing viscosities of any metallic glass and was injection molded using tooling based on plastic injection molding technology. Injection-molded beams and die-cast beams were tested in three-point bending. The average modulus of rupture (MOR) was found to be similar, while injection-molded beams had a smaller standard deviation in MOR.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2008.09.021