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Reinforced alloy; Oxidized SiC particles; Ultimate tensile stress; Fracture toughness; Metallurgical structure.
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Strengthening Of The Astm-356 Alloy With Silicon Carbide Particles, Jaime Hinojosa-Torres, Diego Sánchez-García, Andrés Herrera-Vázquez, Jose Luis Velázquez-Ortega
Strengthening Of The Astm-356 Alloy With Silicon Carbide Particles, Jaime Hinojosa-Torres, Diego Sánchez-García, Andrés Herrera-Vázquez, Jose Luis Velázquez-Ortega
Journal of Metals, Materials and Minerals
Extensive research has been done in recent years in composites of metallic matrix in order to get better melting practices, mechanical properties and structure. In this work, steel metal mould was previously preheated to three different temperatures. The ASTM-356 alloy was melted and heated to 993 K. For the purpose of reinforcing, silicon carbide particles (mesh: 325, 400) were introduced into the melted alloy then stirred. For each obtained solid its solidification time was recorded. Cylindrical specimens were tested in a tension test machine in order to obtain the ultimate tensile strength (UTS) and fracture toughness (KIc) values. Hardness measurements …