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Published February 2009 | public
Journal Article

Injection molding metallic glass


Advances in alloy development have produced the Zr_(35)Ti_(30)Be_(27.5)Cu_(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.

Additional Information

© 2008 Acta Materialia Inc. Received 5 September 2008; revised 23 September 2008; accepted 24 September 2008. Available online 7 October 2008. Special thanks to Doug Hofmann, Rebecca Stevens, Glenn Garrett, Jin-Yoo Suh and Joe Schramm for valuable discussion and heroic help quenching the 420 °C massive mold.

Additional details

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