The tribological characteristics of Al-Si/graphite composite

• Autorzy: Walczak M. , Zwierzchowski M. , Bieniaś J. , Caban J.

Warianty tytułu

PL

Charakterystyka tribologiczna kompozytu Al-Si/grafit

• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of tribological research on AlSi12CuNiMg/5.7 wt.% Gr aluminium composite material (containing graphite particles in the amount of 5.7% wt.%) and on its matrix. This composite is used as high-tech construction material in the automotive industry, particularly for pistons, cylinder liners, and slide bearings. The tribological properties of these materials can be significantly changed as a result of the introduction of graphite particles. Therefore, wear tests have been carried out using the ball-on-disc tribometer. Microstructure and wear resistance of the matrix and composite alloy have been subjected to comparative analysis. It was demonstrated that the composite reinforced with graphite is characterized by a lower friction coefficient and lower wear in comparison to the matrix.

PL

Artykuł przedstawia wyniki badań tribologicznych aluminiowego materiału kompozytowego AlSi12CuNiMg/5.7 wt.% Gr (zawierającego cząsteczki grafitu w ilości 5,7% wag.) i jego osnowy. Kompozyt ten znajduje zastosowanie jako nowoczesny materiał konstrukcyjny w przemyśle motoryzacyjnym, szczególnie na tłoki, tuleje cylindrowe i łożyska ślizgowe. Wprowadzenie cząstek grafitu znacząco może zmieniać właściwości tribologiczne tych materiałów. W tym celu wykonano testy zużycia na tribometrze typu kula-tarcza. Mikrostruktura i odporność na zużycie stopu osnowy i kompozytu zostały poddane analizie porównawczej. Wykazano, że kompozyt zbrojony grafitem charakteryzuje się mniejszym współczynnikiem tarcia i mniejszym zużyciem w porównaniu z osnową.

Słowa kluczowe

EN

aluminium matrix composite; graphite; sliding friction; wear testing

PL

aluminiowe materiały kompozytowe; grafit; tarcie ślizgowe; testy zużycia

• Wydawca: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
• Czasopismo: Tribologia
• Rocznik: 2017
• Tom: nr 1
• Strony: 97--104
• Opis fizyczny: Bibliogr. 27 poz., rys., tab., wykr., wz.

Twórcy

autor

Walczak M.

• Lublin University of Technology, Faculty of Mechanical Engineering, Department of Materials Engineering, 36 Nadbystrzycka Street, 20-618 Lublin, Poland

autor

Zwierzchowski M.

• Wrocław University of Technology, Faculty of Mechanical Engineering, Institute of Production Engineering and Automation, 5 Łukasiewicza Street, 50-371 Wrocław, Poland

autor

Bieniaś J.

• Lublin University of Technology, Faculty of Mechanical Engineering, Department of Materials Engineering, 36 Nadbystrzycka Street, 20-618 Lublin, Poland

autor

Caban J.

• University of Life Sciences in Lublin, Faculty of Production Engineering, Department of Transporting and Agricultural Machinery, 28 Głęboka Street, 20-612 Lublin, Poland

Bibliografia

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Uwagi

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