Microstructural and wear behavior of dual reinforced particle (DRP) aluminum alloy composite
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The present investigations are a comparative study of single and dual reinforcement particles on microstructural features and wear behavior in LM-13 aluminum–silicon alloy. Silicon carbide and zircon sand particles of 20–32 μm are reinforced in the alloy by two-step stir casting method. Wear study reveals that the dual particle reinforcement enhances the wear resistance as compared to single particle reinforcement if mixed in a definite proportion. Study also indicate that a combination of 15 % reinforcement of zircon sand and silicon carbide particles in the ratio of 1:3 into the composite exhibits better wear resistance as compared to other combination.
The authors are thankful to Armament Research Board (ARMREB), Defence Research and Development Organization (DRDO), India for providing financial support vide letter number ARMREB/MAA/2008/105 for this study.
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