A Fluidity Study of Semi-Solid Rheo-Slurry of AC4C Aluminum Alloy in Gravity Sand Casting

Thiensak Chucheep; Rungsinee Canyook; Tanate Rattanochaikul; Somjai Janudom; Sirikul Wisutmethangoon; Jessada Wannasin

doi:10.4028/www.scientific.net/AMR.337.439

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 337A Fluidity Study of Semi-Solid Rheo-Slurry of AC4C...

A Fluidity Study of Semi-Solid Rheo-Slurry of AC4C Aluminum Alloy in Gravity Sand Casting

Abstract:

A new approach to evaluate fluidity of semi-solid rheo-slurries was developed. The equipment was designed in order to reduce pouring error by using bottom tapping and heated tapping ladle. Commercial AC4C aluminum alloy slurries were tested in spiral sand mold by gravity casting. The slurries were prepared by introducing fine gas bubbles into molten metal above the liquidus temperature at different rheocasting times. Average fluidity and microstructures of cast spirals were reported. Results show that the spiral microstructure is non-dendritic and the fluidity of AC4C alloy decreases with increasing solid fraction. In conclusion, the spiral casting method using bottom tapping can be used to evaluate the fluidity of rheocast slurries in gravity sand casting.

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Periodical:

Advanced Materials Research (Volume 337)

Pages:

439-442

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.337.439

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Online since:

September 2011

Authors:

Thiensak Chucheep, Rungsinee Canyook, Tanate Rattanochaikul, Somjai Janudom, Sirikul Wisutmethangoon, Jessada Wannasin

Keywords:

Giss Process, Rheocasting, Sand Casting, Semi-Solid Fluidity, Slurry Casting

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