Use of the Precipitation Hardening to Improve the Properties of Combustion Engine Pistons Made of Eutectic Silumins

• Autorzy: Trepczyńska-Łent Małgorzata , Műller K.

Identyfikatory

DOI

10.24425/afe.2021.138682

• Języki publikacji: EN

Abstrakty

EN

The study presents methods to be used for improving the performance parameters of car engine pistons made of EN AC-AlSi12CuNiMg alloy according to the PN-EN 1706: 2011. Pistons of slow sucking and turbocharged engines were researched. A solution heat and ageing treatments were applied according to four variants. Temperatures of the solution heat treatment were: 550 ±5°C; 510°C ±5°C; and alternate: 276 ±5°C/510 ±5°C. The solution time ranged from 6 min to 4 h. Temperatures of the ageing heat treatment were 20°C and 250°C, while the ageing time ranged from 1,5 to 3h. Natural ageing was performed in 5 days. Measurements of hardness HRB and the piston diameters were performed. An improvement in the performance parameters of combustion engines was observed. Three solution heat treatment and ageing variants, allowed to obtain the pistons with hardness equal/higher than pistons of the turbocharged engines. The test results confirmed the possibility of providing a piston with properties exceeding the high load parameters specified by the manufacturer. Further studies will make it possible to improve the effects of the proposed solutions.

Słowa kluczowe

EN

silumins; precipitation hardening; heat treatment; hardness

PL

siluminy; utwardzanie; obróbka cieplna; twardość

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2021
• Tom: Vol. 21, iss. 4
• Strony: 77--81
• Opis fizyczny: Bibliogr. 26 poz., fot., tab.

Twórcy

autor

Trepczyńska-Łent Małgorzata

• Mechanical Engineering Faculty, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland

autor

Műller K.

• Bergerat Monnoyeur Sp. z o.o. – Caterpillar, Poland

Bibliografia

• [1] Stone, R. (2012). Introduction to Internal Combustion Engines. Fourth Edition, SAE and Macmillan.
• [2] Heywood, J.B. (2018). Internal Combustion Engines Fundamentals, Second Edition, McGraw-Hill Education.
• [3] Kirkpatrick, A.T. (2020). Internal Combustion Engines: Applied Thermosciences. Fourth Edition, John Wiley & Sons.
• [4] Bosch, R. (2018). Automotive Handbook. 10th Edition: Robert Bosch GmbH
• [5] Siemińska-Jankowska, B. & Pietrowski, S. (2003). The effects of temperature on strength of the new piston aluminum materials. Journal of KONES Internal Combustion Engines. 10(1-2), 237-250.
• [6] Wajand, A., Wajand, J. (2005). Reciprocating internal combustion engines. Wydawnictwa Naukowo Techniczne PWN. (in Polish).
• [7] Manasijevic, S., Pavlovic-Acimovic, Z., Raic, K., Radisa, R. & Kvrgi´c, V. (2013). Optimisation of cast pistons made of Al–Si piston alloy. International Journal of Cast Metals Research. 26(5), 255-261.
• [8] Javidani, M. & Larouche, D. (2014). Application of cast Al–Si alloys in internal combustion engine components. International Materials Reviews. 59(3), 132-158.
• [9] Pietrowski, S. (2001) Silumins. Łódź: Wydawnictwo Politechniki Łódzkiej. (in Polish).
• [10] Poniewierski, Z. (1989). Crystallization, Structure and Mechanical Properties of Silumins. Warszawa: WNT. (in Polish).
• [11] Kaufman, J.G., Rooy, E.L. (2004). Aluminum Alloy Castings: Properties, Processes and Applications. ASM International.
• [12] Zolotorevsky, V.S., Belov, N.A., Glazoff, M.V. (2007). Casting Aluminium Alloys. Elsevier: Oxford, UK, pp. 327-376.
• [13] Pezda, J. (2015). The effect of the T6 head treatment on change of mechanical properties of the AlSi12CuNiMg alloy modified with strontium. Archives of Metallurgy and Materials. 60(2), 627-632.
• [14] Czekaj, E., Fajkiel, A. & Gazda, A. (2005). Short-lived ultrahigh temperature silicon spheroidization treatment of silumins. Archiwum Odlewnictwa. 5(17), 51-68. (in Polish).
• [15] Dobrzański, L.A., Reimann, L. & Krawczyk, G. (2008). Influence of the ageing on mechanical properties of the aluminium alloy AlSi9Mg. Archives of Materials Science and Engineering. 31, 37-40.
• [16] Pezda, J. (2010). Heat treatment of EN AC-AlSi13Cu2Fe silumin and its effect on change of hardness of the alloy. Archives of Foundry Engineering. 10(1), 131-134.
• [17] Pezda, J. (2014). Effect of a selected heat treatment parameters on technological quality of a silumin-cast machinery components; Bielsko-Biała: ATH Scientific Publishing House: Bielsko-Biała, Poland.
• [18] Pezda, J. & Jarco, A. (2016). Effect of T6 heat treatment parameters on technological quality of the AlSi7Mg alloy. Archives of Foundry Engineering. 16(4), 95-100.
• [19] Czekaj, E., Kwak, Z., Garbacz-Klempka, A. (2017). Comparison of impact of immersed and micro-jet cooling during quenching on microstructure and mechanical properties of hypoeutectic silumin AlSi7Mg0.3. Metallurgy and Foundry Engineering. 43(3), 153-168.
• [20] Pezda, J. & Jezierski, J. (2020). Non-standard T6 heat treatment of the casting of the combustion engine cylinder head. Materials. 13(18), 4114.
• [21] Jarco, A. & Pezda, J. (2021). Effect of heat treatment process and optimization of its parameters on mechanical properties and microstructure of the AlSi11(Fe) alloy. Materials (Basel) 14(9), 2391.
• [22] Nikitin, K.V., Chikova, O.A., Amosov, E.A. & Nikitin, V.I. (2016). Shortening the time of heat treatment of silumins of the Al – Si – Cu system by modifying their structure. Metal Science and Heat Treatment. 58(7), 400-404.
• [23] Prudnikov, A., Prudnikov, V. (2019). The mode of hardening heat treatment for deformable piston hypereutectic silumins. International Scientific Journal Materials science. Non-equilibrium phase transformations. 5(3), 74-77.
• [24] Kantoríková, E., Kuriš, M. & Pastirčák, R. (2021). Heat treatment of AlSi7Mg0.3 Aluminium alloys with increased zirconium and titanium content. Archives of Foundry Engineering. 21(2), 89-93.
• [25] Kuriš, M., Bolibruchova, D. M., Matejka M. & Kantoríková, E. (2021). Effect of the precipitation hardening on the structure of AlSi7Mg0.3Cu0.5 alloy with addition of Zr and combination of Zr and Ti. Archives of Foundry Engineering. 21(1), 95-100.
• [26] Rychter, T., Teodorczyk, A. (2006). Theory of piston engines. Wydawnictwa Komunikacji i Łączności. (in Polish).

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).