Characterization of Microstructure and Shrinkage Porosity of a Semi-Solid Metal Slurry in Gravity Die Casting

Abstract:

Article Preview

Current aluminum automotive parts such as wheels, engine and transmission components are produced by tilted gravity die casting for control gas porosity. But, there are still problems resulting in inefficient production: shrinkage porosity, microstructure size and uniformity. Shrinkage porosity is one of the major issues which affects mechanical properties such as strength and elongation in tilted pour permanent mold. Recent work using slurry casting technique has shown potential in gravity sand casting. Results show that the casting parts have complete filling at low solid fractions and the casting yield is also higher than conventional gravity sand casting. This paper extends important work for potential industrial applications in gravity die casting: microstructure size, uniformity, solid fraction control for micro shrinkage level.

Info:

Periodical:

Solid State Phenomena (Volume 285)

Edited by:

Qiang Zhu, Ahmed Rassili, Stephen P. Midson and Xiao Gang Hu

Pages:

161-166

Citation:

S. Thanabumrungkul et al., "Characterization of Microstructure and Shrinkage Porosity of a Semi-Solid Metal Slurry in Gravity Die Casting", Solid State Phenomena, Vol. 285, pp. 161-166, 2019

Online since:

January 2019

Export:

Price:

$41.00

* - Corresponding Author

[1] R.Bain, M.Cunningham, Aluminum Permanent Mold Handbook Published by the American Foundry Society (2001).

[2] A.M. Gokhale, G.R. Petel, Scr. Mater.52 (2005) 237-241.

[3] D.R. Gunasegaram, D.J. Farnsworth, T.T. Nguyen. J. Matererials Processing Technology 209 (2009) 1209-1219.

[4] J.Campbell,Castings,Butterworth-Heinemann (1999) 191-205, 267-268.

[5] P.S. Mohanty, J.E. Gruleski, Acta. Mater.44 (1996) 3749-3760.

[6] P.L. Schaffer, A.K. Dahle, Mater Sci Eng A 413-414(2005) 373-378.

[7] P.Li, S.Liu, L.Zhang, X.Liu, Mater and Design 47 (2013) 522-528.

[8] T.Chucheep, R.Burapa, S.Janudom, S.Wisutmethangoon , J.Wannasin, Trans Nonferrous Met Soc China 20 (2010) 981-987.

[9] J.Wannasin, R.A. Martinez, M.C. Flemings, Scr. Mater.55(2006) 115-118.

[10] J.Wannasin, R Canyook, S.wisutmethanggoon, M.C. Flemings, Acta.Mater.61(2013) 3897.