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IJSTR >> Volume 9 - Issue 1, January 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Deformation Studies On Aa7075 Reinforced With Sic/Fa/Graphite Quad Metal Matrix Composite (Qmmc)

[Full Text]

 

AUTHOR(S)

Kiran Kumar Bunga, Dr. L. V. Venugopala Rao, Dr D Lingaraju, Uppada Sri Ramakanth,*

 

KEYWORDS

Compression, AA7075, Metal Matrix, Reinforcements, Hydro static stress

 

ABSTRACT

The present research work aim is to find the compression characteristics of AA7075 metal matrix composite using a traditional analytical method and finite element method. Regarding AA7075 is reinforced with Silicon carbide, fly ash and graphite particulates in vertex method under stir casting route. The samples are fabricated by considering silicon carbide 3, 4.5, and 6 weight percentages, fly ash and graphite equal weight percentage ratios of 3, 4.5 and 6 were reinforced with AA7075. The fabricated samples are machined using computer numerical control machine to acquiring the required dimensions of the samples. There are four standard different geometrical shapes are manufactured for this analysis The deformation or homogenous compression test was performed on UTM (Instron machine) for the three different reinforcements of AA7075 under no friction condition between the sample and contact surfaces. The deformation in axial and circumferential direction was found for base AA7075 and reinforced composites for aspect ratios 1.0 and 1.5. The deformation in height with diameter is maximum for 9% of reinforced composite compare to AA7075 and other composites for aspect ratio 1.0,the maximum deformation was observed for 12% of composite composites compare to other materials for H/D ratio 1.5.The strength coefficient K and strain hardening n are good for the 9% of reinforced composite it indicates the good plastic behaviour compare to base and other composites for H/D ratio 1.0, whereas for H/D ratio 1.5 the a good plastic behaviour exhibit for the 6%of composite At beginning of the deformation the axial stress are increased after upset of the sample it was decreased for aspect ratios, for AA7075 base material the axial stress are in tension it indicates the sample was not fractured. The circumferential stress are always in compression for all the cases for lower aspect ratio the circumferential and hydro static stress are high compare to higher aspect ratio of base and reinforced composites.

 

REFERENCES

[1] Wei Wei ,Wei Zhang, Kun XiaWei , Yi Zhong, Gang Cheng, Jing Hu, “Finite element analysis of deformation behavior in continuous ECAP process”, Materials Science and Engineering A 516 (2009) 111–118
[2] M. Gopi Krishna, K. Praveen Kumar J. Babu Rao , NRMR Bhargava , K. VijayaBhaskar, “Deformation Studies on A2024/Fly ash/Sic Hybrid Composites”, “International Journal of Engineering Research & Technology (IJERT)”, Vol. 2 Issue 10, October – 2013 IJERT ISSN: 2278-0181
[3] J Babu Rao, D Venkata Rao, I Narasimha Murthy and NRMR Bhargava, ”Mechanical properties and corrosion behaviour of fly ash particles reinforced AA 2024 composites”, Journal of Composite Materials 46(12) 1393–1404.
[4] Uppada Rama Kanth, Putti Srinivasa Rao, MallarapuGopi Krishna, “Mechanical behaviour of fly ash/SiCparticlesreinforced Al-Zn alloy-based metal matrix composites fabricated by stir casting method”, JMRT Vo l . 2 0 1 9; 8(1):737–744
[5] U. S. Ramakanth& Putti. Srinivasa Rao, “Wear Behaviour of Al 7075/Fa/Sic Hybrid Composites”, International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN(P): 2249-6890; ISSN(E): 2249-80 Vol. 9, Issue 2, Apr 2019, 331-338
[6] U.Ramakanth, Putti Srinivasa Rao, “Corrosion Studies on Ceramic Particulates Reinforced Hybrid Metal Matrix Composites” International Journal of Mechanical Engineering and Technology (IJMET) Volume 10, Issue 01, January 2019, pp. 661–666, ISSN Print: 0976-6340 and ISSN Online: 0976-6359.
[7] J. Babu Rao, Syed Kamaluddin and N.R.M.R. Bhargava, “Optical strain measurements and its finite element analysis of cold workability limits of pure aluminium”, International Journal of Engineering, Science and Technology Vol. 2, No. 12, 2010, pp. 1-13.
[8] S Madhusudan, M MMSarcar, K Sunil Ratna Kumar, “Fabrication and deformation studies on Al-Cu composite metallic materials”, “Indian Journal of Engineering & Materials Sciences”, Vol. 19, June 2012, pp. 175-178