Semisolid Processing of Al-Sn-Cu Alloys for Bearing Applications

Abstract:

The aim of this work was to evaluate the advantages in using semisolid processing of Al-Sn alloys in order to improve microstructural homogeneity and, consequently, wear resistance. Different tests were performed on an Al3Sn4Cu by using ultrasound treatments during solidification to obtain an almost globular microstructure. Metallurgical characterizations and pin on disk wear tests were carried out on semisolid as well as on conventionally cast samples in order to assess the benefit of the treatment.

• Periodical: Solid State Phenomena (Volumes 192-193)
• Pages: 562-568
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.192-193.562
• Online since: October 2012
• Authors: Annalisa Pola, Lorenzo Montesano, Marcello Gelfi, Roberto Roberti
• Keywords: Al-Sn Alloy, Friction, Semi-Solid, Ultrasound Treatment, Wear

References

[1] F. P. Bowden, D. Tabor, Friction and Lubrication of Solids, Vol. II, Oxford University Press, London, 1964.

[2] K. Lepper, M. James, J. Chashechkina, D.A. Rigney, Sliding behavior of  selected aluminium alloys, Wear, Vol. 203-204, 1997, pp.46-56.

DOI: 10.1016/s0043-1648(96)07475-3

[3] Casting design and performance, ASM International, Ohio, 2009, pp.232-233.

[4] J. R. Davis, Aluminum and Aluminum Alloys, Asm Specialty Handbook, Ohio, 1993.

[5] G. R. Kingsbury, G.Vandervell, Friction and Wear of Sliding Bearing Materials, in ASM Metals handbook, Vol. 18, Friction, Lubrication, and Wear Technology, Asm International, Ohio, 1992.

DOI: 10.31399/asm.hb.v18.a0006412

[6] M. Kurtz, Handbook of materials selection, Wiley and sons, Canada, 2002, p.130.

[7] D. Apelian, Worldwide Report Aluminum Cast Alloys, NADCA, Wheeling, 2009.

[8] J.E. Hatch, Aluminum: Properties and Physical Metallurgy, ASM International, Ohio, 1984, p.236.

[9] H.R. Kotadia, E. Doernberg, J.B. Patel, Z. Fan, R. Schmid-Fetzer, Solidification of Al-Sn-Cu Based Immiscible Alloys under Intense Shearing, Met. And Mat. Trans. A, Vol. 40A, 2009, pp.2202-2211.

DOI: 10.1007/s11661-009-9918-x

[10] F. C. Campbell, Elements of Metallurgy and Engineering Alloys, ASM International, Ohio, 2009, p.504.

[11] R. A. Rosenberg, M. C. Flemings, M. C., H.F. Taylor, Non ferrous Binary Alloys Hot Tearing, AFS Trans, Vol. 69, ,1960, pp.518-528.

[12] S. Feliu, M.C. Flemings, and H.F. Taylor, "Effect of Modes of Solidification on the Fluidity of Some Aluminum-Tin Alloys," Brit. Foundryman, 43, 1960, p.41.

[13] H.R. Kotadia, E. Doernberg, J.B. Patel, Z. Fan, R. Schmid-Fetzer, Solidification of Al-Sn-Cu based immiscible alloys under intense shearing, Met. And Ma. Trans. A, Vol. 40A, pp.2202-2211.

DOI: 10.1007/s11661-009-9918-x

[14] D. Mirkovic, J. Grobner, R. Schmid-Fetzer, Liquid demixing and microstructure formation in ternary Al-Sn-Cu alloys, Mat. Sc. and Eng. A, Vol. 487, 2008, pp.456-467.

DOI: 10.1016/j.msea.2007.10.043

[15] A. Pola, A. Arrighini, R. Roberti, Effect of Ultrasounds Treatment on Alloys for Semisolid Application, Solid State Phenomena Trans Tech Publi., Vols. 141-143, 2008, pp.481-486.

DOI: 10.4028/www.scientific.net/ssp.141-143.481

[16] K. Holmberg, A. Matthews, Coating Tribology, Elsevier, Amsterdam, 1994.