Consolidation and Mechanical Properties of Near-Net-Shape Al-21 wt.% Si Component Fabricated by Plasma Spray Forming

Soon Jik Hong; S. Patil; Chang Kyu Rhee; S. Seal

doi:10.4028/www.scientific.net/SSP.119.183

Paper Titles

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High Functional Adsorbent Alumina Nanofibers Prepared by a Hydrolysis of Al Nanopowder
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Fabrication of High Density Y₂O₃ Ceramics by Magnetic Pulsed Compaction
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The Mechanical Milling Behavior of Ductile Cu Flakes when Using Ultrafine Al₂O₃ Reinforcements
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Consolidation and Mechanical Properties of Near-Net-Shape Al-21 wt.% Si Component Fabricated by Plasma Spray Forming
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Preparation of Impurity-Doped TiO₂ Nanoparticles and Their Applications for Photocatalysis and Biopanning
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Microwave-Assisted Combustion Synthesis of α-Alumina and Magnesium Aluminate Spinel Nanocomposite Powders
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Characterization and Photocatalytic Properties of Transition Metal Doped TiO₂ and Nanocomposite TiO₂ Powders Synthesized by Mechanical Alloying
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Photodefined Metal Pattern Formation and Its Electromagnetic Interference Shielding Effect
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Consolidation and Mechanical Properties of Near-Net-Shape Al-21 wt.% Si Component Fabricated by Plasma Spray Forming

Abstract:

The microstructure and mechanical properties of Al-21 wt% Si components fabricated by plasma spray forming are analyzed. The microstructure of the plasma spry formed component showed a homogeneous distribution of fine Si particles embedded in the Al matrix. The grain size of α-Al varied between 200 to 500 nm and the size of the Si particles was about 50 to 100 nm in the plasma spray formed component. The room temperature tensile strength of the plasma spray formed component was 215 MPa with 0.5 % elongation, while for cast material, it was 130 MPa. Despite the porosities, the ultra-fine microstructure and homogeneous distribution of Si particles embedded in matrix are the foundation of the increased strength of the plasma spry formed component.