• Onkar Singh
• Baljinder Ram

In the current study Al 5251 alloy based surface composite are produced by using SiC and Al2O3 reinforcements with the help of friction stir processing. Effect of different combinations of process parameters (tool speed, number of passes and reinforcements) on mechanical properties viz. tensile strength, hardness and impact strength is investigated. The optical images shown that the reinforcement uniformly distributed in the matrix. It is also observed that the mechanical properties of Al 5251 alloy surface composites are improved as compared to unreinforced alloy. The hardness of the processed alloy reached up to 44 HRB which is significant higher than the unprocessed alloy. The tensile strength of Al alloy increased up to 229 MPa by double pass of FSP without any reinforcement. Impact strength is improved by formation of surface composite on alloy. The overall properties of the Al 5251 alloy are improved by FSP.

Friction stir processing, tensile strength, hardness, impact strength.

"TO STUDY THE EFFECT OF FRICTION STIR PROCESSING ON MECHANICAL PROPERTIES OF AL 5251 ALLOY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 6, page no.341-346, June-2017, Available :http://www.jetir.org/papers/JETIR1706070.pdf

"TO STUDY THE EFFECT OF FRICTION STIR PROCESSING ON MECHANICAL PROPERTIES OF AL 5251 ALLOY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 6, page no. pp341-346, June-2017, Available at : http://www.jetir.org/papers/JETIR1706070.pdf