Publication: Effects of forming temperature and sintering rate to the final properties of FeCuAl powder compacts formed through uniaxial die compaction process
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Date
2018
Authors
Rahman M.M.
Ismail M.A.
Sopyan I.
Rahman H.Y.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics Publishing
Abstract
This paper presents the outcomes of an experimental investigation on the effects of forming temperature and sintering schedule to the final characteristics of FeCuAl powder mass formed at different temperature and sintered at different schedule. A lab-scale uni-axial die compaction rig was designed and fabricated which enabled the compaction of powder mass at room temperature as well as elevated temperature. Iron (Fe) powder ASC 100.29 was mechanically mixed with other elemental powders, namely copper (Cu), and aluminum (Al) for 60 minutes and compacted at three different temperature, i.e., 30�C, 150�C, and 200�C by applying 425 MPa of simultaneous downward and upward axial loading to generate green compacts. The as-pressed samples were inspected visually and the defect-free green compacts were subsequently sintered in an argon gas fired furnace at 800�C for 60 min at three different heating/cooling rates, i.e., 5, 10, and 15�C/min, respectively. The sintered samples were then characterised for their physical, electrical, and mechanical properties. The microstructures of the sintered samples were also analysed. The results revealed that a forming temperature of 150�C and a sintering rate of 10�C/min could produce a product with better characteristics. � Published under licence by IOP Publishing Ltd.
Description
Aluminum alloys; Argon; Compaction; Copper alloys; Iron alloys; Manufacture; Powders; Ternary alloys; Elemental powders; Elevated temperature; Experimental investigations; Forming temperature; Heating/cooling rate; Powder compacts; Sintered samples; Uniaxial die compaction; Sintering