Considerations on the Reliability of Advanced Squeeze Casting Process

Abstract:

This paper presents an analysis of an advanced squeeze casting process suitable for the manufacturing of high performance industrial components more quickly and cheaply. After a short description of the process, some produced components are considered. The components, in A380 alloys, have been T6 heat treated and their soundness has been certified by non destructive tests. All considered components have been designed for advanced application in the automotive field, in particular for quite important sport cars. Standard samples for tensile and impact tests have been machined directly from the previous components. After the execution of the tests the fracture surface of samples has been observed by SEM in order to analyze details and to evaluate the influence of the process and of the alloy on the fracture behavior. On polished transverse sections of samples the microstructure of the alloy has been observed, highlighting a mainly globular shaped microstructure as expression of the attained semi-solid conditions during the processes. A critical analysis has been developed to evaluate the real potential and to present some criticism of the process.

• Periodical: Key Engineering Materials (Volumes 504-506)
• Pages: 361-366
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.504-506.361
• Online since: February 2012
• Authors: Mario Rosso, Ildiko Peter
• Keywords: Advanced Squeeze Casting, Al-Based Alloy, Rheocasting, T6 Temper

References

[1] Haga T., Kapranos P, Tech. Vol. 130 - 131 (2002), p.594.

[2] Nafisi S. And Ghomashchi R.: Materials Characterization Vol. 57 (2006), p.371.

[3] Seo P.K., Kim D.U. and Kang C.G.: J. Mater. Proc. Tech. Vol. 162 - 163 (2005), p.570.

[4] Falak P. and Niroumand B.: Scripta Materialia Vol. 53 (2005), p.53.

[5] H.V. Atkinson, D. Liu, Materials Science and Engineering: A, Volume 496, Issues 1-2, 25 November 2008, Pages 439-446.

[6] Kirkwood DH, Kapranos P, editors. on Proceedings of the 4th International Conference on Semi-Solid Processing of Alloys and Composites, Sheffield, UK, June 1996, University of Sheffield, 1996.

[7] Fan Z. on International Materials Review, Vol. 47, 49–85, 2002.

[8] Zhen, Z., Qian, Ma., Fan, S. Ji, Z.on Scripta Materialia, 207-211, 2006.

[9] M. Rosso, I. Peter, R. Villa on J. of Solid State Phenomena Vol. 141-143, 237-242, 2008.

[10] M. Rosso, I. Peter, G. Chiarmetta, I. Gattelli, on Proceedings of the 11th Int. Conference on Semi-Solid Processing of Alloys and Composites, Beijing , 16th – 18th September, 2010.

[11] M. Rosso, I. Peter, C. Bivol, R. Molina, G. Tonno on International Journal of Material Forming, Vol.3, Supplement 1, 787-790, 2010.

DOI: 10.1007/s12289-010-0888-8