Search results for "Spray forming"

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Synthesis of bulk FeAl nanostructured materials by HVOF spray forming and Spark Plasma Sintering

2006

Abstract This paper examines the efficiency of two consolidation processing techniques: High Velocity Oxy-Fuel (HVOF) spray forming and Spark Plasma Sintering (SPS) to obtain bulk nanostructured materials from an Y 2 O 3 reinforced Fe–40Al (at.%) milled powder. The microstructures of the sintered end-products were characterized by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) in order to gain new insights in their microstructure formation mechanisms. HVOF spray forming is more effective to retain fine nanograins, in particular within retained unmelted powder particles. The drawbacks of this technique are that it inevitably leads to a high fraction of porosity…

Materials scienceScanning electron microscopeMechanical EngineeringMetallurgyMetals and AlloysSpark plasma sinteringFEALGeneral ChemistryMicrostructureSpray formingMechanics of MaterialsTransmission electron microscopyMaterials ChemistryThermal sprayingPorosityIntermetallics
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Bulk FeAl nanostructured materials obtained by spray forming and spark plasma sintering

2007

Abstract This paper examines the efficiency of two consolidation processing techniques high velocity oxy-fuel (HVOF) spray forming and spark plasma sintering (SPS) which allow to obtain bulk dense nanostructured materials. An oxide dispersion strengthened (ODS) Fe–40Al (at.%) based milled powder (with a nanostructure

NanostructureMaterials scienceMechanical EngineeringMetallurgyMetals and AlloysOxideSpark plasma sinteringFEALSpray formingMicrostructurechemistry.chemical_compoundchemistryMechanics of MaterialsPowder metallurgyMaterials ChemistryThermal sprayingJournal of Alloys and Compounds
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