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Large-scale production of Ca65Mg15Zn20 bulk metallic glass samples by low-pressure die-casting

✍ Scribed by K.J. Laws; B. Gun; M. Ferry

Publisher: Elsevier Science
Year: 2008
Tongue: English
Weight: 805 KB
Volume: 475
Category: Article
ISSN: 0921-5093
DOI: 10.1016/j.msea.2007.04.059

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✦ Synopsis

Ca 65 Mg 15 Zn 20 bulk metallic glass samples of dimensions 3.15 mm × 7 mm × 125 mm were prepared using a repetitive low-pressure die-casting technique. It was found that charge temperature, injection pressure and fluid velocity at the mould gate were important parameters for controlling the length, porosity and the presence of crystalline phases in the as-cast samples. A processing map was generated which shows the optimum region of melt temperature and casting pressure for generating the highest quality castings of these dimensions.

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