This work analyzed the microstructural and mechanical properties of sintered and hot pressed aluminum alloy AA2014, an aluminum metal matrix composite and an aluminum hybrid metal matrix composite. Sample-1 (AA2014), sample-2 (AA2014 + 5wt% TiB2) and sample-3 (AA2014 + 5 wt% TiB2 + 5 wt% Al2O3) were developed by powder metallurgy. It involves elemental powder mixing and uniaxial green compaction in a 350 MPa universal testing machine followed by sintering in a 550 °C electric muffle furnace for 2 h and hot pressing in a vacuum hot press at nitrogen atmosphere for 2 h at 620 °C. Density assessment, study of microstructure and mechanical characterization were subjected to three samples. For both sintering and hot pressed condition, mechanical and physical properties were analyzed. Samples-1, 2, and 3 display a marginal increase of 1, 1.4 and 1.4% of sintered densities after hot pressing. Sample-1, 2, and 3 porosity were decreased by 15.94, 25 and 22.2% after hot pressing. Improved  mechanical properties due to the transfer of load from the matrix to the two reinforcements TiB2 and Al2O3 after hot pressing.


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    Title :

    Microstructural and Mechanical Characterization of Sintered and Hot Pressed Hybrid Metal Matrix Composites


    Additional title:

    Lect.Notes Mechanical Engineering




    Publication date :

    2020-09-27


    Size :

    10 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English