Sliding Wear Behaviour of Al-7075 Based Metal Matrix Composite: Effect of Processing Parameters


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Metal Matrix Composite made from Al-7075 based alloy dispersed with 10% SiC particles through the liquid metallurgy route were evaluated for their sliding wear properties under different loads and for a length of sliding distance. The volume loss and wear rate under different experimental conditions were compared between the following conditions for both the alloy and composite (i) cast (ii) aged (iii) extruded. Attempts have been made to arrest wear of the alloys that experience seizure under the mildest of experimental conditions through the above processing techniques and explain the experimental results through worn surface studies. The extent of success attained through each process has been discussed. It is felt that the cumulative effect of the different processing techniques including composite making, ageing and extrusion can open up new avenues for this alloy system, which in general is not used for wear resistant applications.



Key Engineering Materials (Volumes 504-506)

Edited by:

M. Merklein and H. Hagenah




R. Dasgupta et al., "Sliding Wear Behaviour of Al-7075 Based Metal Matrix Composite: Effect of Processing Parameters", Key Engineering Materials, Vols. 504-506, pp. 555-560, 2012

Online since:

February 2012




[1] Surappa M.K., Aluminium matrix composites: Challenges and Opportunities, (2003) Sadhana, 28, 1 & 2: 319–334.


[2] Nuesbaum , New Application for Al. Based MMC, Light Metal Age, 55[Feb], 1997, 54.

[3] Zedalis M. S,. Cilman P. S and Das S. K (1990) In: Das S.D. (ed) High performance composites for the The Metallurgy Society of AIME.

[4] Shakesheff A.J. and Purdue G (1998) Designing Metal Matrix Composites to Meet Their Target: Particulate Reinforced Al Alloys for missile Applications, Material Science and Technology, 14: 851-856.


[5] Pitcher P. D, Shakesheff A.J. and. Lord J. D (1998) Aluminum Based Metal Matrix Composites for Improved Elevated Temperature Performance, Material Science and Technology, 14: 1015-1023.

[6] Miller W. S and. Humphreys F. J (2000) In: M.N. Gungar, P.K. Liaw (ed), Fundamental Relationship between Microstructures and Mechanical Properties of Metal Matrix Composites.

[7] Shin K, Chung D and Lee S (1997).

[8] Singh M, Mondal D.P., Dasgupta R. and Jha A.K. (2000) Combined effect of load. abrasive size and sliding distance on the high stress abrasive wear behaviour of an Al-alloy -10% granite particle composite, Aluminium Transactions, 3, 1: 7-15.


[9] Srivatsan T. S (1992), Microstructure, tensile properties and fracture behaviour of aluminium alloy 7150, Journal of Materials Science, 27: 4772-4781.


[10] Tjong S.C. and Ma Z.Y. (1999) Steady state creep deformation behaviour of SiC particle reinforced 2618 aluminium alloy based composites, Materials Science and Technology, 15: 429-436.


[11] Ma Z.Y., Liang Y.N., Zhang Y.Z., Lu Y.X. and Bi J (1996)., Sliding wear behaviour of SiC particle reinforced 2024 aluminium alloy composites, Materials Science and Technology, 12: 751-756.


[12] Rohatgi P.K. (1993), Metal Matrix Composites, Journal of Defence Science, 43, 4: 323-334.

[13] Rohatgi P. K., Asthana R. and. Das S (1986), Solidification, Structure and Properties of Cast Metal-ceramic Particle Composites, International Metals Reviews, 31, 3: 115-139.


[14] Iwasaki H., Mori T., Mabuchi M. and Higashi K. (1999), Microstructural Evolution and Plastic Stability during Superplastic flow in A 7475 Aluminum Alloy, Materials Science and Technology, 15: 180-184.


[15] Metals Handbook, Interpretation of scanning electron microscope fractographs, ASM Committee on Fractography by electron microscopy, ASM, edition 8, Vol. 9, pp.64-67.

[16] Metals Handbook (1996), Scanning electron microscope fractographs, John A Fellows, ASM, edition 8, 9:. 64-78.