J. A. Yurko’s research while affiliated with Massachusetts Institute of Technology and other places

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Publications (1)


Thixocasting of a near-liquidus cast Al-Mg based alloy
  • Article

January 1999

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9 Reads

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6 Citations

Journal of Materials Science Letters

J. A. Yurko

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X. P. Niu

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I. Pinwill

In this study, an attempt was made to demonstrate the use of a near liquidus cast Al-Mg based alloy for semi-solid thixocasting. A component of a fishing reel was both conventional high pressure die-cast from a liquid melt and thixocast from a liquidus cast billet using the same mold. Components were examined using both optical and electron microscopy and tensile samples were taken from the runner of a cast part. Parts were compared against samples that were cast using conventional high-pressure die-casting. The results indicate that liquidus casting is a viable alternative for producing thixocast billets.

Citations (1)


... In order to provide mentioned thixotropic properties of an alloy for the success of thixoforging process, various methods have been developed such as cooling slope casting, spray casting, electromagnetic stirring, strain induced melt activation (SIMA) and ultrasonic treatment [10]. Low superheat casting (LSC) is an alternative tech-nique to produce suitable feedstock without sophisticated devices and thus thixotropic flow behaviour thanks to the equiaxed microstructure can be achieved with reduced cost as against other methods [11,12]. The molten alloy is solidified at just above the liquidus temperature in LSC process. ...

Reference:

Investigation of spherisation in microstructures of aluminium casting alloys for thixoforging process
Thixocasting of a near-liquidus cast Al-Mg based alloy
  • Citing Article
  • January 1999

Journal of Materials Science Letters