Transactions of Materials and Heat Treatment

Title：Friction and wear properties of Al2O3/7075 composite

Authors： Ji Shun Wu Qingjie Yan Hong Liu Jianlong Nie Qiao

Unit： Nanchang University Jiangxi Ling-Ge Non-ferrous Metal Processing Co. Ltd.

KeyWords： Al2O3 7075 aluminum alloy composite friction and wear wear mechanism

ClassificationCode：TG146.2+1；TG292

year,vol(issue):pagenumber：2018,43(11):132-136

Abstract：

Al2O3/7075 composite with Al2O3 mass fraction of 0, 1.0%, 2.0% and 3.0% were fabricated by high-intensity ultrasonic treatment respectively, and the dry sliding friction and wear tests of Al2O3/7075 composite with different Al2O3 content were conducted under different loads (15,30,45 and 60 N)by pin-disk type wear testing machine. The result shows that the addition of Al2O3 particles refines the matrix structure, and the hardness of 2.0% Al2O3/7075 composite increases by 17.5% compared to 7075 aluminum alloy matrix. Then, both wear volume and friction coefficient of the composite increase with the increasing of load, and the wear volume and friction coefficient of the composite are lower than that of 7075 aluminum alloy matrix under invariable load. Compared to the 7075 aluminum alloy matrix, the wear volume of 2.0%Al2O3/7075 composite under 60 N load decreases by 80.5%, and under 60 N load, the main wear mechanism of 7075 aluminum alloy matrix is adhesive wear, and with the increasing of Al2O3 content, the wear mechanism of the composite changes into the peeling wear.

Funds：

江西省自然科学基金资助项目（20171BAB206034）

吉顺（1994-），男，硕士研究生,E-mail：1078608622@qq.com;通讯作者：闫洪（1962-），男，博士，教授，博士生导师,E-mail：yanhong_wh@163.com

Reference：

［1］Koli D K, Agnihotri G, Purohit R. Advanced aluminium matrix composites:The critical need of automotive and aerospace engineering fields
［J］. Materials Today Proceedings, 2015, 2(4-5)：3032-3041.

［2］Radha A, Vijayakumar K R. An investigation of mechanical and wear properties of AA6061 reinforced with silicon carbide and graphene nano particles-particulate composites
［J］. Materials Today Proceedings, 2016, 3(6)：2247-2253.

［3］Bhaskar K V, Sundarrajan S, Rao B S, et al. Effect of reinforcement and wear parameters on dry sliding wear of aluminum composites-A review
［J］. Materials Today Proceedings, 2018, 5(2)：5891-5900.

［4］Rao K V S, Govindaraju. Sliding wear behavior of cast Al-7075 alloy reinforced with MgO particulates
［J］. Materials Today Proceedings, 2017, 4(10)：11096-11101.

［5］Singh K K, Singh S, Shrivastava A K. Comparison of wear and friction behavior of aluminum matrix alloy (Al 7075) and silicon carbide based aluminum metal matrix composite under dry condition at different sliding distance
［J］.Materials Today, 2017,4(8)：8960-8970.

［6］Aranke O, Gandhi C, Dixit N, et al. Influence of multiwall carbon nanotubes (MWCNT) on wear and coefficient of friction of aluminium (Al 7075)metal matrix composite
［J］. Materials Today Proceedings, 2018, 5(2)：7748-7757.

［7］Ravindranath V M, Shankar G S S, Basavarajappa S, et al. Dry sliding wear behavior of hybrid aluminum metal matrix composite reinforced with boron carbide and graphite particles
［J］. Materials Today Proceedings, 2017, 4(10)：11163-11167.

［8］Altnkok N, zsert I·, Fndk F. Dry sliding wear behavior of Al2O3/SiC particle reinforced aluminium based MMCs fabricated by stir casting method
［J］. Acta Physica Polonica, 2013, 124(1)：11-19.

［9］Wu Q J, Yan H, Zhang P X, et al. Enhancing wear resistance of A356 alloy by adding CNFs based on ultrasonic vibration casting
［J］. Acta Metallurgica Sinica, 2018，31(2)：1-10.

［10］王志伟, 闫洪, 熊俊杰. Sr变质对ADC12合金摩擦磨损性能的影响
［J］. 中国有色金属学报, 2016, 26(5)：1075-1083.

Wang Z W, Yan H, Xiong J J. Effect of Sr modification on friction and wear properties of ADC12 alloy
［J］. The Chinese Journal of Nonferrous Metals, 2016, 26(5)：1075-1083.

［11］Kumar G B V, Rao C S P, Selvaraj N. Mechanical and tribological behavior of particulate reinforced aluminum metal matrix composites-A review
［J］. Journal of Minerals & Materials Characterization & Engineering, 2010, 10(1)：59-91.

［12］Liu W, Yan H, Zhu J B. Effect of the addition of rare earth element La on the tribological behaviour of AlSi5Cu1Mg alloy
［J］. Applied Sciences, 2018, 8(2)：163.

［13］Sun Z, Zhang D, Li G. Evaluation of dry sliding wear behavior of silicon particles reinforced aluminum matrix composites
［J］. Materials & Design, 2005, 26(5)：454-458.

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