Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 640, Issue -, Pages 421-427Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.03.093
Keywords
Metal matrix composites; Stir-casting; Composite metallic materials; High entropy alloy
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Funding
- Advanced Analytical Laboratories, DST-PURSE Programme, Andhra University
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Work has been carried out to produce composites with high strength and good ductility by maximizing a uniform and smooth interface for effective transfer of load and minimizing reinforcement agglomerations/cracking/pull outs. High strength, high entropy alloy (ternary) in particulate (HEAp) form was used as reinforcement in 2024 aluminium. AA 2024-HEAp composite was prepared through stir cast route by dispersing an average particle size of 125 mu m as reinforcement with various weight fractions varying between 5% and 15%. Subsequently, billets were hot extruded to 14 mm O rods. All the extrudates were thoroughly homogenized with industrial furnace at 100 degrees C for 24 h. The mechanical behaviour of alloy and composites was studied in terms of resistivity, hardness, and tensile studies. An increment of 62% in hardness has been observed. Increased reinforcement contents enhance the mechanical properties such as yield strength, tensile strength and Young's modulus. (C) 2015 Elsevier B.V. All rights reserved.
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