Study on Mechanical Properties of Al 7075 Hybrid Metal Matrix Composites

Abstract:

The present investigation involves studying the mechanical properties of the fabricated aluminium 7075 hybrid metal matrix composites reinforced with various weight % of SiC and Al₂ O₃ particulates by stir casting method. The Al 7075 hybrid metal matrix composites specimen were fabricated using L₉ orthogonal array. The mechanical properties like Brinell Harness (BHN), Rockwell Hardness (HRC) and impact loads were experimented. The mechanical properties like hardness and impact loads have improved with the increase in weight percentage of SiC and Al₂O₃ particulates in the hybrid aluminium matrix.

• Periodical: Applied Mechanics and Materials (Volumes 813-814)
• Pages: 230-234
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.813-814.230
• Online since: November 2015
• Authors: T.S.A. Suryakumari, S. Ranganathan, P. Shankar
• Keywords: Al 7075, Brinell Hardness, Impact Loads, Mechanical Properties, Rockwell Hardness

References

[1] Y. Sahin and M. Acilar, Production and properties of SiCp-reinforced aluminium alloy composites, Composites part A. 34 (8) (2003) 709-718.

DOI: 10.1016/s1359-835x(03)00142-8

[2] A. Sakthivel, R. Palaninathan, R. Velmurugan and P. Raghithama Rao, Production and mechanical properties of SiCp particle-reinforced 2618 aluminum alloy composites, J. Mat. Sci. 43 (22) (2008) 7074-7056.

DOI: 10.1007/s10853-008-3033-z

[3] Hai Su, Wenli Gao, Zhaohui Feng and Zheng Lu, Processing, microstructure and tensile properties of nano-sized Al2O3 particle reinforced aluminum matrix composites, Mat. Design, 36 (2012) 590-596.

DOI: 10.1016/j.matdes.2011.11.064

[4] Y. Sahin, Preparation and some properties of SiC particle reinforced aluminium alloy composites, Mat. Design, 24 (8) (2003) 671-379.

DOI: 10.1016/s0261-3069(03)00156-0

[5] G.R. Li, Y.T. Zhao, H.M. Wang, G. Chen and X.N. Cheng, Fabrication and properties of in situ (Al3Zr + Al2O3)p/A356 composites cast by permanent mould and squeeze casting, J. Alloy. and Comp. 471 (1-2) (2009) 530-535.

DOI: 10.1016/j.jallcom.2008.04.037

[6] Li Gui-rong, WANG Hong-Ming, ZHAO Yu-Tao, CHEN Deng-bin CHEN Gang and CHEN Xiao-nong, Microstructure of in situ Al3Ti/6351Al composites fabricated with electromagnetic stirring and fluxes, Trans. Nonferrous Met. Soc. China 20 (2010) 577−583.

DOI: 10.1016/s1003-6326(09)60181-3

[7] YANG Hua-jing, ZHAO Yu-tao, CHEN Gang, ZHANG Song-li, and CHEN Deng-bin, Preparation and microstructure of in-situ (ZrB2+Al2O3+Al3Zr)p/A356 composite synthesized by melt direct reaction, Trans. Nonferrous Met. Soc. China 22 (2012) 571−576.

DOI: 10.1016/s1003-6326(11)61215-6

[8] Y. Mazaheri n, M. Meratian, R. Emadi, A.R. Najarian Comparison of microstructural and mechanical properties of Al–TiC, Al–B4C and Al– TiC-B4C composites prepared by casting techniques Materials Science & Engineering A, 560 (2013), 278–287.

DOI: 10.1016/j.msea.2012.09.068

[9] K. Kalaiselvan, N. Murugan, Siva Parameswaran , Production and characterization of AA6061–B4C stir cast composite, Materials and Design 32 (2011) 4004–4009.

DOI: 10.1016/j.matdes.2011.03.018

[10] Hossein Abdizadeh, Reza Ebrahimifard, and Mohammad Amin Baghchesara, Investigation of microstructure and mechanical properties of nano MgO reinforced Al composites manufactured by stir casting and powder metallurgy methods: A comparative study, Composites: Part B 56 (2014).

DOI: 10.1016/j.compositesb.2013.08.023

[11] Abhishek Kumar, Shyam Lal, Sudhir Kumar Fabrication and characterization of A359/Al2O3 metal matrix composite using electromagnetic stir casting method J. Mater. Res. Technol. 2 (3) (2013), 250–254.

DOI: 10.1016/j.jmrt.2013.03.015