Strength and tribological properties of sintered powder composite materials based on copper with addition of alumina and nickel oxide

• Autorzy: Feldshtein, E. , Dyachkova, L.
• Języki publikacji: EN

Abstrakty

EN

In the paper, the influence of oxide addition on the strength and mechanical properties of a sintered powder material based on copper is described. The increase of alumina content in the composite sintered material leads to decreasing its strength. The most significant decrease of strength is observed when less than 5% of alumina is added to the total volume. A further increase of the alumina content practically leaves the bending strength unchanged and decreases the strength limit in compression insignificantly. The addition of mixture of 80% of the alumina and 20% of the nickel oxide increases the bending strength about 40 50 MPa, and also promotes the formation of a more homogeneous and fine-grained structure, as well as decreases material porosity. The average coefficient of friction of the "sintered composite material - hardened steel C45" pair practically did not change over time. The lowest coefficients of friction were observed for a material containing alumina addition. An addition of Motor Life Professional additive to the lubricant oil reduces the coefficient of friction for the material free of oxides more than 30%. The temperature of friction is reduced by 25÷30% and the rate of linear wear decreases 1.4 to 3 times.

Słowa kluczowe

PL

materiały kompozytowe; tlenek; wytrzymałość; tarcie; zużycie

EN

composite materials; oxide; strength; friction; wear

• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2012
• Tom: Vol. 17, no. 1
• Strony: 41-52
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Feldshtein, E.

autor

Dyachkova, L.

• Institute of Mechanical Engineering and Machine Operation University of Zielona Góra ul. Prof. Z. Szafrana 4 65-516 Zielona Góra, POLAND,

Bibliografia

• ASM Handbook (1998): Powder Metal Technologies and Applications. - ASM International, vol.7.
• Barlak M. (2001): Composite ceramic Al2O3 - alloy Ni-Fe-Cr to merger ceramic to metals. ( Composites, No.1, pp.12-15.
• CRC Handbook of Lubricant and Tribology (1994): Monitoring, Materials, Synthetic Lubricants and Applications, (Ed. by E.R. Booser). - Vol.3, New York: CRC Press.
• Fedorchenko I.M. and Pugina L.I. (1980): Composite sintered antifriction materials. ( Kiev: Naukowa Dumka.
• http://www.moto-plus.com.pl/motor-life.doc
• Jenek M. and Laber A. (2000): Investigation of lubricant properties of base oil modified by lubricant additions and exploitative preparations. ( Works of Radom Polytechnic Institute (Theory and Practice), No.1, pp.49-53.
• Korosteleva Е.N., Savickij A.P. and Rusin N.M. (1999): Influence of FeAl3 and graphite additions on tribotechnical properties of sintered aluminum bronze. ( Advanced Materials, No.4, pp.58-61.
• Li Ai-min, Sun Kangning and Bi Jiangiang (2003): Mechanical properties and microstructure of Fe-Al/Al2O3 composite with Cr, Mo and Ti. ( Transactions of Nonferrous Metals Society of China, vol.13, No.4, pp.860-863.
• Liang Shuhua, Fang Liang, Xu Lei and Fan Zhikang (1999): Effect of Al content on the properties and microstructure of Al2O3-Cu composite prepared by internal oxidation. ( Acta Metallurgica Sinica, vol.35, No.8, pp.888-892.
• Patent 5870663, В22F 3/26 USA. Manufacture and use of ZrB2/Cu composite electrodes /Stucker B., Bradley W.L., Eubank P., Bozkurt B., Norasetthekul S., 1999.
• Ragab Kh.A., Abdel-Karim R., Farag S., El-Raghy S.M. and Ahmed H.A. (2010): Influence of SiC, SiO2 and graphite on corrosive wear of bronze composites subjected to acid rain. ( Tribology International, vol.43, No.3, pp.594-601.
• Shunk F.A. (1969): Constitution of Binary Alloys. ( Second Supplement, New York: McGraw-Hill Book Company.
• Vetterick G.A. (2010): Lead-free, bronze-based surface layers for wear resistance in axial piston hydraulic pumps. ( Ames, Iowa State University).
• Zhang J.Y., Fu Z.Y., Wang W.M., Wang H. and Min X.M. (1995): Wettability between TiB2 ceramic and metals. ( Acta Metallurgica Sinica, vol.12, No.4, pp.395-400.
• Zhang Shuangyi, Xiao Zhiyu, Xian Zhiyong and Li Yuanyuan (1999): Investigation on SiC particulate reinforced iron matrix composites by powder metallurgy. Journal of South China University of Technology (Natural Science Edition), vol.27, No.5, pp.105-109.