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Showing 1 to 20 of 63 for “"Powder Metallurgy"”.
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Coarse powder metallurgy.
… Institute of Technology, Department of Metallurgy, 1966
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Characterization of Powder Metallurgy Lightweight Alloys
… has seen a steady increase in the amount of powder metallurgy products that have been included in modern vehicles. The majority of the parts were cold press and sintered products that allowed for a high production volume and low cost option. In more recent years, the powder metallurgy parts …
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Optimizing Powder Metallurgy Methods: Carbon Nanotube Metal Composites
… metal-matrix composites (Al-CNT/MMCs) via the powder metallurgy method (PM), 2) characterize the effects of CNT morphology on the physical properties of Al-CNT/MMCs.
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Gamma prime precipitation modeling and strength responses in powder metallurgy superalloys
… engine applications for more than 50 years. Powder metallurgy (P/M) technology was introduced as an innovative manufacturing process to overcome severe segregation and poor workability of alloys with high alloying contents. The excellent mechanical properties of P/M superalloys also depend …
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Analysis of sintered WC-TIC-6CO by using powder metallurgy process
… the methods of plastic injection molding and powder metallurgy technology. In this study, the material used was tungsten carbide with 6wt% cobalt (WC-6Co) and titanium carbide (TiC) as grain growth inhibitor while low density polyethylene (LDPE) and palm stearin (PS) were used as a binder …
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Sustainable Spacefaring: Exploration of scrap metal powder metallurgy on the lunar surface
… the lunar architectural surface needs for a powder metallurgy processing facility and recommend areas of improvement for the design of future spacecraft to ease the proposed recycling process. While metals can be extracted from the lunar surface, the operation of excavation, separation, …
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Study on Low-cost Alternatives for Synthesising Powder Metallurgy Titanium and Titanium Alloys
… about cost effective ways for synthesising powder metallurgy Ti and Ti alloys. This was done: using low cost Ti powders produced by the hydrogenation dehydrogenation (HDH) method; using induction heating, instead of the more traditionally used electrically heated vacuum furnace, for …
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Synthesis, characterisation, and properties of powder metallurgy transition metal-based high entropy alloys for electrocatalytic application
… are not self-supporting and being synthesised in powder form are often coated onto conductive substrates such as Ni foam and carbon fibre. Hence this powder based electrocatalysts are not suitable for industrial scale hydrogen production. In addition, most synthesised HEAs consist of Co which is …
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Fabrication of 316-L stainless steel and composite micro machine components using softlithography and powder metallurgy process
… composite materials, using Softlithography and powder metallurgy processes. Three different 316-L stainless steel powders, including 5, 10 and 16 μm in size, and two different ceramics powders, including 400 nm alumina and 320 nm titania, were tested. The PhD research process can be divided into …
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Dynamic Compaction of Rapidly Solidified Nickel-Base Superalloys (Rapid Solidification, Powder Metallurgy, Hot Isostatic Pressing, Consolidation, Precipitation)
Rapid solidification of an experimental nickel-base superalloy was achieved using centrifugal atomization, chill-block melt-spinning and laser surface melting. Transmission electron microscopy was utilized to characterize the various microstructures obtained in terms of growth morphology, …
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Parameter analysis of copper-nickel-tungsten prepared via powder metallurgy process for electrical discharge machining of polycrystalline diamond
… the works in production of Cu-Ni-W electrode by powder metallurgy route. Production of powder metallurgy parts involve mixing of the powder with additives or lubricants, compacting the mixture and heating the green compacts in an Argon gas furnace so the particle bond to each other. Two levels of …
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The role of Hydrogen as a temporary alloying element during the manufacturing stages of Ti-6AI-4V by the powder metallurgy route
… of titanium (Ti) and Ti-6Al-4V by the powder metallurgy (PM) route using commercially pure titanium (CP Ti), titanium hydride (TiH2) and Ti-6Al-4V powders as starting materials. Several powder blends were selected and respective samples were pressed at compaction pressures ranging from …
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Design and processing of low alloy high carbon steels by powder metallurgy. P/M processing and liquid phase sintering of newly designed low-alloy high carbon steels based on Fe-0.85Mo-C-Si-Mn with high toughness and strength.
… predict liquid phase amounts for two different powder grades, Astaloy 85Mo or Astaloy CrL with additive elements such as (0.4-0.6wt%)Si, (1.2-1.4wt%)C and (1-1.5wt%)Mn, in the sintering temperature range 1285-1300ºC and such powder mixes were pressed and liquid phase sintered. In high-C steels …
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Stochastic Mean-Field Polycrystal Plasticity Methods
… the texture and deformation data measured from a powder metallurgy specimen. However, round-corner square rolled (RCSR) specimen simulations over-predict the texture development and do not accurately predict the specimen deformation. We attribute this discrepancy to the elongated crystal …
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Investigation of the hot deformation of sintered titanium compacts produced from direct reduction powder
The focus of this study was the use of powder metallurgy to produce low cost titanium with comparative mechanical properties to wrought titanium. The objectives of this investigation was to produce sintered titanium compacts that represented metal made by the Direct Powder Rolling method. The …
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Titanium alloy powder production from waste metal
… lower cost methods such as near-net shape powder metallurgy techniques. One approach, which has the potential of producing the lowest cost powder available, involves converting titanium waste machine turnings to powder using the hydride-dehydride (HDH) process. The focus of this project is …
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The commercial viability of direct powder rolled titanium: A systematic review and market analysis
Direct powder rolling (DPR) is thought to be a more cost-effective, more direct route to producing flat product of near final thickness. It is a particularly attractive route for titanium given that the existing wrought method of melting titanium sponge to ingot followed by rolling to slab to plate …
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Homogenisation of titanium - 6 aluminium - 4 vanadium (TI-6AL-4V) powder blends during sintering
… fields such as the automotive industry. The powder metallurgy (PM) method is an emerged method that may lower processing costs. The blended elemental (BE) route to produce titanium alloys has been identified as the cheapest process by which the PM process can be applied. The powder metallurgy …
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Phase equilibria studies of Cr3O-type structures in the vanadium- rhodium-silicon and niobium-rhodium-silicon ternary systems
… Cr₃O composition line and were prepared by powder metallurgy techniques. The compacts were then arc-melted, given a homogenization anneal, and examined by x-ray diffraction. Complete solid solubility of silicon for rhodium was found across the V-Rh-Si system in the Cr₃O-type structure. A …
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