Tribological properties of Cu based composite materials strengthened with Al2O3 particles

• Autorzy: Kaczmar J. , Granat K. , Grodzka E. , Kurzawa A.
• Języki publikacji: EN

Abstrakty

EN

In the present work copper was strenghtened with 20 and 30 vol. % of alumina particles characterized by diameter of 3-6μm. The copper based composite materials were manufactured by the squeeze casting method. Preheated preforms made from Al2O3 particles were placed in the desired place in the heated cast die and the squeeze casting process with liquid copper was performed applying the infiltration pressure of 90MPa and pressure was kept for 10-15s until solidification was complete. The microstructure and physical properties: Brinell hardness (HBW) and density were characterized. Metallografic examinations showed that alumina particles were uniformly distributed in the copper matrix. Hardness of 208 HBW for composite materials containing 30 vol.% of particles was achieved. Wear investigations were performed applying the tribological pin-on-disc tester. Friction forces between copper based composite materials containing 20 and 30 vol. % of Al2O3 particles and cast iron were registered and wear was determined on the base of the specimen mass loss after 1.0, 3.5 and 8.5 km friction distance.

Słowa kluczowe

EN

metal matrix composite; copper; aluminium oxide particles; tribological properties; wear resistance; friction coefficient; Pin-on-disc tester

PL

kompozyt metalowy; miedź; tlenek aluminium; właściwości tribologiczne; odporność na ścieranie; współczynnik tarcia

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 2s
• Strony: 33--36
• Opis fizyczny: Bibliogr. 4 poz., rys., tab., wykr.

Twórcy

autor

Kaczmar J.

• Wrocław University of Technology, Institute of Mechanical Engineering and Automation, Wrocław, Poland

autor

Granat K.

• Wrocław University of Technology, Institute of Mechanical Engineering and Automation, Wrocław, Poland

autor

Grodzka E.

• Wrocław University of Technology, Institute of Mechanical Engineering and Automation, Wrocław, Poland

autor

Kurzawa A.

• Wrocław University of Technology, Institute of Mechanical Engineering and Automation, Wrocław, Poland

Bibliografia

• [1] Kaczmar J. W., Pietrzak K. & Włosiński W. (2000). The production and application of metal matrix composite materials, Journal of Materials Processing Technology, 106, 58-67. DOI:10.1016/S0924-0136(00)00639-7.
• [2] Jamaati R., Reza M. & Toroghinejad S. (2010). Application of ARB process for manufacturing high-strength fine dispersed and higly uniform Cu / Al2O3 composite: Materials Science and Engineering, A 527, 7430–7435.
• [3] Kurzawa A. (2007). Wear properties of AW-AlCu4Mg2Mn – SiC composite materials, Visnik Chmel'nickogo Nacional'nogo Universitetu, No. 4, 44-47.
• [4] Kaczmar J. W., Granat K. & Pietrzak K. & Naplocha K. & Grodzka E. (2010). Manufacturing and microstructure of MMC based on CuZn38Al2Mn1Fe brass strengthened with δ-alumina fibres, Archives of Foundry Engineering, 10, 411- 414.