The Effect of Mn on Microstructure and Mechanical Properties on Splat Cooled Al-20Si-5Fe-3Cu-1Mg Alloy, M.Sc. Thesis Sharif University of Technology ; Davami, Parviz (Supervisor)
Abstract
In this research ,Al-20Si-5Fe-3Cu-1Mg-XMn alloys were produced by gas atomizing and melt spinning processes. Microstructure and growth morphology of powder and ribbons were investigated using optical microscopy , scanning electron microscopy. powders were hot pressed at 400ºC/250Mpa and microstractural variations, mechanical properties were evaluated after consolidation. Results show that relatively high cooling rate in gas-atomized powders lead to refinement of microstructure and formation of semi-equilibrium δ intermetallic phase . As the powder particle size decrease , the growth morphology changes from primary silicon + euthectic to euthectic + primary dendritic aluminum . Mn changed the...
Cataloging briefThe Effect of Mn on Microstructure and Mechanical Properties on Splat Cooled Al-20Si-5Fe-3Cu-1Mg Alloy, M.Sc. Thesis Sharif University of Technology ; Davami, Parviz (Supervisor)
Abstract
In this research ,Al-20Si-5Fe-3Cu-1Mg-XMn alloys were produced by gas atomizing and melt spinning processes. Microstructure and growth morphology of powder and ribbons were investigated using optical microscopy , scanning electron microscopy. powders were hot pressed at 400ºC/250Mpa and microstractural variations, mechanical properties were evaluated after consolidation. Results show that relatively high cooling rate in gas-atomized powders lead to refinement of microstructure and formation of semi-equilibrium δ intermetallic phase . As the powder particle size decrease , the growth morphology changes from primary silicon + euthectic to euthectic + primary dendritic aluminum . Mn changed the...
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