Journal ArticleDOI
Processing strategy for consolidating tungsten heavy alloys for ordnance applications
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The use of depleted uranium (DU) alloys as a kinetic energy penetrator for high strain rate applications has focussed the interest in tungsten alloys.About:
This article is published in Materials Chemistry and Physics.The article was published on 2001-01-15. It has received 145 citations till now. The article focuses on the topics: Tungsten.read more
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Microwave sintering of W¿Ni¿Fe alloy
TL;DR: In this paper, the effect of heating mode on the microstructure and mechanical properties of 92.5W 6.4Ni 1.1Fe alloy was compared with a conventional furnace and a 2.45 GHz microwave furnace.
Journal ArticleDOI
Pennsylvania State Universityに留学して
TL;DR: In this paper, a goal-based dynamic action selection mechanism incorporating a model for emotions was developed for use with autonomous agents, and the model incorporated a reward prediction module that altered the effect of an event based on the error between when an event occurred and when it was predicted to occur, which resulted in the emotions returning to their steady state values unless there was continual reinforcement through the occurrence of events.
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Fabrication and properties of mechanically alloyed oxide-dispersed tungsten heavy alloys
Ho Jin Ryu,Soon Hyung Hong +1 more
TL;DR: The microstructures and mechanical properties of mechanically alloyed oxide-dispersed tungsten heavy alloys were investigated in this paper, where the oxide dispersoids effectively inhibit the coarsening of tengsten particles during sintering.
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Microwave sintering of refractory metals/alloys: W, Mo, Re, W-Cu, W-Ni-Cu and W-Ni-Fe alloys.
TL;DR: This review article describes recent research findings about how these refractory metals and alloys have been successfully consolidated using microwave sintering, which resulted in an overall reduction of sintered time of up to 80% and better mechanical properties have been observed.
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Tensile behavior change depending on the varying tungsten content of w-ni-fe alloys
TL;DR: In this article, the effect of varying tungsten content on the microstructure and mechanical properties of Tungsten heavy alloys was examined and the microstructural parameters (grain size, connectivity, contiguity and solid volume fraction) were measured and were found to have a significant effect on the mechanical properties.
References
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Book
Sintering theory and practice
TL;DR: Sintering Measurement Techniques Solid-State Sintering Fundamentals as discussed by the authors Microstructure and Processing Relations in Solid-state Sinterings, Mixed Powders, Pressure-Assisted SinterING.
Journal ArticleDOI
Pennsylvania State Universityに留学して
TL;DR: In this paper, a goal-based dynamic action selection mechanism incorporating a model for emotions was developed for use with autonomous agents, and the model incorporated a reward prediction module that altered the effect of an event based on the error between when an event occurred and when it was predicted to occur, which resulted in the emotions returning to their steady state values unless there was continual reinforcement through the occurrence of events.
Journal ArticleDOI
Sintering Atmosphere Effects on the Ductility of W- Ni- Fe Heavy Metals
Randall M. German,K. S. Churn +1 more
TL;DR: In this paper, the sintering atmosphere role in stabilizing detrimental residual pore structures was examined on alloys containing 93, 95, or 97 wt pct W with Ni:Fe ratios of 7:3.
Journal ArticleDOI
Microstructure effects on tensile properties of tungsten-Nickel-Iron composites
B. H. Rabin,Randall M. German +1 more
TL;DR: In this article, deformation and fracture behavior of heavy alloys containing 88 to 97 pct W were studied via slow strain rate tensile testing at room temperature, where the tradeoff between strength and ductility resulted in a maximum in the ultimate tensile strength at 93 pct w.r.t.
Journal ArticleDOI
Sintering time and atmosphere influences on the microstructure and mechanical properties of tungsten heavy alloys
TL;DR: In this article, an optimized sintering atmosphere was used to sinter two heavy alloy compositions (88 and 95 wt pct W) for times up to 600 minutes at 1480 °C.