Formation of functionally graded hybrid composite materials with Al₂O₃ and RHA reinforcements using friction stir process

ABSTRACT

In the present investigation, hybrid aluminium based composite material was developed by using two dissimilar aluminium alloys with Al₂O₃ and RHA reinforcement particles via Friction Stir Process. Equally proportions of Al₂O₃ ceramic particles and RHA were used as filler (reinforcement) material in between the two aluminium plates (Al6063 and Al8011). Microstructures results showed a uniform distribution of reinforcement particles in between two aluminium alloys plates. The tensile strength of Al₂O₃ andRHAreinforced FGM composite is better for lower tool rotational speed i.e. 560 rpm but as the tool speed increases the tensile strength decreases. The least tensile strength can be observed for 1460 rpm. The tensile strength reduces with the increase in tilt angle. The tensile strength is better for triangular tool shape but continuously decreases with the smoothness of the tool. However, the hardness of Al₂O₃ and RHAreinforced FGM composite is better for the triangular tool shape and minimum tool speed i.e. 560 rpm but as the smoothness of the tool increases the hardness decreases. The least hardness can be observed for the circular tool. The hardness decreases as the tool angle increases. The better hardness can be seen for minimum tool angle i.e. 0⁰.

KEYWORDS:

• FSP
• functionally graded composite material
• Al₂O₃
• RHA
• hybrid composite

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Chandra Vikram Singh

Chandra Vikram Singh is M. Tech. scholar in the Department of Mechanical Engineering at Gautam Buddha University, Greater Noida. He has completed his dessrtration work under the guidance of Dr. Satpal Sharma and Dr. Praveen Pachauri.

Praveen Pachauri

Dr. Praveen Pachauri is currently Professor in the Department of Mechanical Engineering at Noida Institute of Technology and Management, Greater Noida. His Research area is materials and manufacturing processes. He has published more than 30 Research Papers in National and International Journals and Conferences.

Shashi Prakash Dwivedi

Dr. Shashi Prakash Dwivedi is currently Associate Professor in the Department of Mechanical Engineering at G. L. Bajaj Institute of Technology and Management, Greater Noida. His Research area is materials and manufacturing processes. He has published more than 75 Research Papers in National and International Journals and Conferences.

Satpal Sharma

Satpal Sharma is currently Assistant Professor in the Department of Mechanical Engineering at Gautam Buddha University, Greater Noida. His Research area is materials and manufacturing processes, welding. He has published more than 80 Research Papers in National and International Journals and Conferences.

R. M. Singari

Dr. R. M. Singari is currently Professor in the Department of Mechanical Engineering at Delhi Technological University, Delhi. His Research area is materials and manufacturing processes. He has published more than 50 Research Papers in National and International Journals and Conferences.