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Improvement in elevated-temperature properties of Al–13% Si piston alloys by dispersoid strengthening via Mn addition

Published online by Cambridge University Press:  11 May 2018

Kun Liu  and
X-Grant Chen
Kun Liu*
Affiliation:
Department of Applied Sciences, University of Quebec at Chicoutimi, Saguenay, Quebec G7H 2B1, Canada
X-Grant Chen
Affiliation:
Department of Applied Sciences, University of Quebec at Chicoutimi, Saguenay, Quebec G7H 2B1, Canada
*
a)Address all correspondence to this author. e-mail: kun.liu@uqac.ca
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Abstract

Eutectic Al–13% Si alloys are widely used in automotive components, such as pistons and cylinder heads. Recently, the demand on the performance of piston alloys at high temperature is greatly increased to enhance the engine efficiency and to reduce exhaust emission. In the present work, Mn was added to strengthen the aluminum matrix via the formation of thermally stable dispersoids. The evolution of dispersoids during heat treatment and their influence on elevated-temperature properties were studied. The results showed that the as-cast microstructures in the experimental alloys without/with Mn addition were similar, which were composed of eutectic Si, primary Mg2Si, Al–Fe–Ni, Al–Cu–Ni, and π-Al–Mg–Fe–Si intermetallic phases. In the alloy with Mn addition, a number of α-Al(Mn,Fe)Si dispersoids started to form after a heat treatment at 425 °C for 24 h and reached the peak condition at 500 °C for 6 h, resulting in a remarkable increase of the microhardness at room temperature and the improvement in the yield strength and creep resistance at 300 °C. As a complementary strengthening mechanism, the dispersoid strengthening in the aluminum matrix provides a novel approach to improve the elevated-temperature properties of Al–Si piston alloys.

Keywords

Al–Si piston alloysdispersoidsMnelevated-temperature properties
Type
Article
Information
Journal of Materials Research , Volume 33 , Issue 20 , 29 October 2018 , pp. 3430 - 3438
Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

Haque, M.M. and Sharif, A.: Study on wear properties of aluminium–silicon piston alloy. J. Mater. Process. Technol. 118, 69 (2001).CrossRefGoogle Scholar
Belov, N.A., Eskin, D.G., and Avxentieva, N.N.: Constituent phase diagrams of the Al–Cu–Fe–Mg–Ni–Si system and their application to the analysis of aluminium piston alloys. Acta Mater. 53, 4709 (2005).CrossRefGoogle Scholar
Joyce, M.R., Styles, C.M., and Reed, P.A.S.: Elevated temperature short crack fatigue behaviour in near eutectic Al–Si alloys. Int. J. Fatig. 25, 863 (2003).CrossRefGoogle Scholar
Asghar, Z., Requena, G., and Kubel, F.: The role of Ni and Fe aluminides on the elevated temperature strength of an AlSi12 alloy. Mater. Sci. Eng., A 527, 5691 (2010).CrossRefGoogle Scholar
Li, Y., Yang, Y., Wu, Y., Wang, L., and Liu, X.: Quantitative comparison of three Ni-containing phases to the elevated-temperature properties of Al–Si piston alloys. Mater. Sci. Eng., A 527, 7132 (2010).CrossRefGoogle Scholar
Asghar, Z., Requena, G., and Boller, E.: Three-dimensional rigid multiphase networks providing high-temperature strength to cast AlSi10Cu5Ni1-2 piston alloys. Acta Mater. 59, 6420 (2011).CrossRefGoogle ScholarPubMed
Li, Y., Yang, Y., Wu, Y., Wei, Z., and Liu, X.: Supportive strengthening role of Cr-rich phase on Al–Si multicomponent piston alloy at elevated temperature. Mater. Sci. Eng., A 528, 4427 (2011).CrossRefGoogle Scholar
Wang, E.R., Hui, X.D., and Chen, G.L.: Eutectic Al–Si–Cu–Fe–Mn alloys with enhanced mechanical properties at room and elevated temperature. Mater. Des. 32, 4333 (2011).CrossRefGoogle Scholar
Zamani, M., Morini, L., Ceschini, L., and Seifeddine, S.: The role of transition metal additions on the ambient and elevated temperature properties of Al–Si alloys. Mater. Sci. Eng., A 693, 42 (2017).CrossRefGoogle Scholar
Asghar, Z., Requena, G., Degischer, H.P., and Cloetens, P.: Three-dimensional study of Ni aluminides in an AlSi12 alloy by means of light optical and synchrotron microtomography. Acta Mater. 57, 4125 (2009).CrossRefGoogle Scholar
Eidhed, W.: Effect of solution treatment time and Sr-modification on microstructure and mechanical property of Al–Si piston alloy. J. Mater. Sci. Technol. 24, 29 (2008).Google Scholar
Li, Y.J., Muggerud, A.M.F., Olsen, A., and Furu, T.: Precipitation of partially coherent α-Al(Mn,Fe)Si dispersoids and their strengthening effect in AA 3003 alloy. Acta Mater. 60, 1004 (2012).CrossRefGoogle Scholar
Liu, K. and Chen, X.G.: Development of Al–Mn–Mg 3004 alloy for applications at elevated temperature via dispersoid strengthening. Mater. Des. 84, 340 (2015).CrossRefGoogle Scholar
Liu, K., Ma, H., and Chen, X.G.: Enhanced elevated-temperature properties via Mo addition in Al–Mn–Mg 3004 alloy. J. Alloys Compd. 694, 354 (2017).CrossRefGoogle Scholar
Qian, Z., Liu, X., Zhao, D., and Zhang, G.: Effects of trace Mn addition on the elevated temperature tensile strength and microstructure of a low-iron Al–Si piston alloy. Mater. Lett. 62, 2146 (2008).CrossRefGoogle Scholar
Liu, K. and Chen, X-G.: Evolution of microstructure and elevated-temperature properties with Mn addition in Al–Mn–Mg alloys. J. Mater. Res. 32, 2585 (2017).CrossRefGoogle Scholar
Manasijevic, S., Pavlovic-Acimovic, Z., Raic, K., Radisa, R., and Kvrgić, V.: Optimisation of cast pistons made of Al–Si piston alloy. Int. J. Cast Met. Res. 26, 255 (2013).CrossRefGoogle Scholar
Lodgaard, L. and Ryum, N.: Precipitation of dispersoids containing Mn and/or Cr in Al–Mg–Si alloys. Mater. Sci. Eng., A 283, 144 (2000).CrossRefGoogle Scholar
Cerri, E., Evangelista, E., Spigarelli, S., Cavaliere, P., and DeRiccardis, F.: Effects of thermal treatments on microstructure and mechanical properties in a thixocast 319 aluminum alloy. Mater. Sci. Eng., A 284, 254 (2000).CrossRefGoogle Scholar
Muggerud, A.M.F., Mørtsell, E.A., Li, Y., and Holmestad, R.: Dispersoid strengthening in AA3××× alloys with varying Mn and Si content during annealing at low temperatures. Mater. Sci. Eng., A 567, 21 (2013).CrossRefGoogle Scholar
Stadler, F., Antrekowitsch, H., Fragner, W., Kaufmann, H., and Uggowitzer, P.J.: The influence of solution treatment on the high-temperature strength of Al–Si foundry alloys with Ni. In TMS-Light Metals 2012, Suarez, C., ed. (San Antonio, TX, 2012); pp. 431–434.Google Scholar