Properties of novel composite alloys used for the engine pistons

• Autorzy: Kowalski M. , Jankowski A.

Identyfikatory

DOI

10.5604/01.3001.0010.3125

• Języki publikacji: EN

Abstrakty

EN

The article presents the results of the investigations cover novel composite silumins with new alloying additives, such as chromium and molybdenum (not yet used in this type of silumin) and increased content of nickel and copper. The samples strength tests were performed at room temperature (20°C) and at elevated temperatures (up to 350°C), and were carried out using the strength machine, equipped with the special climate chamber. The dimensional stability of the new aluminum alloy was investigated using the precision dilatometer. This device allows one to register and record the sample dimensions as a function of temperature, during sample heating and cooling. During the DTA crystallization process investigations, derivative curves have been determined, that allows the analysis of the solidification process and the analysis of the heat transfer process in the sample structure and phase transformations. In the article shows the derivative curve and representative microstructures, and characteristic temperatures for the conventional AlSi12 alloy and novel composite alloy. All research results indicated that the newly developed composite aluminum alloy has far better parameters than aluminum alloys used previously for pistons of the internal combustion engines. This article concludes with a summary of the advantages of the new composite alloys.

Słowa kluczowe

EN

novel composite alloys; engine pistons; thermal derivative analysis

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2017
• Tom: Vol. 24, No. 4
• Strony: 109--116
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Kowalski M.

• Air Force Institute of Technology Ksiecia Boleslawa Street 6, 01-494 Warszawa, Poland tel.: [phone], fax: [phone]

autor

Jankowski A.

• Air Force Institute of Technology Ksiecia Boleslawa Street 6, 01-494 Warszawa, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Alternate Materials Reduce Weight in Automobile, Advanced Materials & Processes, pp. 20-26, June 1993.
• [2] Soave, et al, Aluminum Piston Bowl Ring Reinforcement with Ceramic Fibers and Rapidly Solidified Alloys, SAE Paper 920085, 1992.
• [3] Wojciechowski, A., Pietrzak, K., Rudnik, D., The Safety Using Vehicles and Criteria of Evaluation of Car Components and Sub-Assemblies Made of Modern Metal Composite Materials, Motor Transport, ITS, 1, pp. 64-88, Poland 2013.
• [4] Belmonte, M. A. R, et al., Improving Heat Transfer and Reducing Mass in Gasoline Engine Piston Using Additive Manufacturng, SAE Paper 2015-01-0505, 2015.
• [5] Stuart Birch: Mercedes’ 2017 E-Class takes a leap towards autonomy, Automobile Engneering, pp. 35-37, April 2016.
• [6] Górny, Z., Sobczak, J., Sławiński, Z., Foundry Aspects and Performance Characteristics of Locally Reinforced Composite Pistons, Odlewnictwo – Nauka i Praktyka, No. 2, pp. 4-14, 2004.
• [7] Schuster, D. M., Skibo, M. D., Hoover, W. R., Production of an Aluminum Composite Materials, Light Metal Age, Vol. 47, pp. 15-21, 1989.
• [8] Sobczak, J., Aluminum Alloys Matrix Composites, Journal of KONES, Vol. 1, No. 1, pp. 580-595, 1994.
• [9] Valentim, J., et al., New Piston Materials, Automotive Engineering, pp. 45-47, June 1993.
• [10] Siemińska, B., Jankowski, A., Pietrowski, S., Ślęzak, M., The Pistons from Novel Composite Alloys Future Combustion Engines of Low EmissionExhaust Gases and Low Noise Levels, FISITA 2008 World Automotive Congress: The Future of Automobiles and Mobility, pp. 485-494, Munich, Germany 2008.
• [11] Siemińska-Jankowska, B., Preliminary Research Novel Composite Materials with Small Hysteresis and High Functional Parameters for Combustion Engine Pistons, Journal of KONES Powertrain and Transport, Vol. 16, No. 1, pp. 447-452, 2009.
• [12] Siemińska, B., Coefficient of Thermal Expansion as a Component Quality Estimation of Alloys on Pistons of Combustion Engines, Journal of KONES Powertrain and Transport, Vol. 16, No. 4, pp. 575-582, 2009.
• [13] Pietrowski, S., Siluminy, Wyd. Politechniki Łódzkiej, Łódź 2001.
• [14] Jankowski, A., Ślęzak, M., Composite Aluminum Alloy in Conditions of Heating and Cooling and Thermal Shocks, Proceedings of ICCE-15th International Conference on Composites//Nano Engineering, International Community for Composite Engineering, University of New Orleans, Dept. of Mechanical Engineering, New Orleans, LA USA 2007.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).