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Microstructure and Mechanical Properties of Al7075-TiB2 in-situ composite

Author Affiliations

  • 1Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bangalore, Karnataka, INDIA
  • 2Department of Mechanical Engineering, Government Engineering College, Ramanagaram, Karnataka, INDIA

Res. J. Material Sci., Volume 1, Issue (10), Pages 6-10, November,16 (2013)


Al7075-TiB in-situ composite was processed by stir casting technique using commercially available Al-10%Ti and Al-3%Br master alloys. Both matrix alloy and composite were subjected to microstructure analysis, microhardness test, grain size studies and tensile test. Microstructure shows fairly uniform distribution of TiB particles in matrix alloy. Average grain size of the composite was lower than unreinforced alloy. Microhardness, yield strength and ultimate tensile strength of Al7075-TiBcomposite are considerably higher when compared with unreinforced alloy. However, the ductility of the composite was decreased when compared with unreinforced alloy.


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