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Article
Spectral-Directional Emittance of 99.99% Aluminum, Thermally Oxidized Below Its Melting Point
Spectral-directional emittance measurements for 99.99% aluminum, thermally oxidized in air, were performed using a radiometric technique. The apparatus is comprised of a Fourier transform infrared spectrometer...
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Article
Thermophysical Property Measurements on Mold Materials: Thermal Expansion and Density
In order to optimize casting processes, computational models of solidification have proven to be very valuable to foundrymen. It is experimentally proven that the casting defects are primarily related to mold ...
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Article
Investigation of the performance of an expandable polystyrene injector for use in the lost-foam casting process
A significant portion of casting defects in the lost-foam casting (LFC) process can be traced back to a lack of consistency in the expandable polystyrene (EPS) foam pattern. The present study focuses on determ...
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Article
Measurement of Specific Heat Capacity and Electrical Resistivity of Industrial Alloys Using Pulse Heating Techniques
The determination of the specific heat capacity and electrical resistivity of Inconel 718, Ti-6Al-4V, and CF8M stainless steel, from room temperature to near the melting temperatures of the alloys, is describe...
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Article
Influence of directional solidification variables on the cellular and primary dendrite arm spacings of PWA1484
A series of directional solidification experiments have been performed to elucidate the effects of thermal gradient G and growth velocity V on the solidification behavior and microstructural development of the mu...
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Article
Oscillating Cup Viscosity Measurements of Aluminum Alloys: A201, A319 and A356
An oscillating cup viscometer was developed to measure the absolute viscosities of molten metals. Previous experiments established the capability of the apparatus to characterize the viscosities of molten nick...
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Article
Numerical modeling and experimental verification of mold filling and evolved gas pressure in lost foam casting process
A simple mathematical model is developed to describe a lost foam casting process. Different aspects of the process, such as liquid metal flow, transient heat transfer, foam degradation and gas elimination were...
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Article
Thermoviscoelastic Properties of Phenolic Resin/Polymeric Isocyanate Binder Systems
Thermoviscoelastic properties of phenolic resin/polymeric isocyanate binder systems (i.e., ISOCURE Parts I and II) are reported. The effects of blend composition and the reaction between the binders on these p...
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Article
Electrical and thermal conductivity of A319 and A356 aluminum alloys
A rotational contactless inductive measurement technique has been used to measure the electrical resistivity of A319 and A356 aluminum alloys at both solid and liquid states. The method is based on the phenome...
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Article
An Inductive Technique for Electrical Conductivity Measurements on Molten Metals
A computer-controlled rotational technique to measure the electrical resistivity of solid and molten metals was developed. The electrical resistivities of pure metals (aluminum, indium, lead, and tin) and the ...
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Article
Influence of solidification variables on the dendrite arm spacings of Ni-based superalloys
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Article
Hydrodynamic modeling of fingering phenomena in curing process
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Article
Viscosity Measurements of Industrial Alloys Using the Oscillating Cup Technique
Molten metal processing can be effectively simulated using state-of-the-art computer algorithms, and manufacturers increasingly rely upon these tools to optimize the design of their operations. Reliable thermo...
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Article
Electrical conductivity measurements in liquid metals by rotational technique
The rotational contactless inductive measurement technique has been developed to measure the electrical conductivity of liquid metals. This method is based on the phenomena when a conductor material rotates in...
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Article
Three-zone Liquid Metals Solidification Model
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Article
In situ monitoring of the sintering behavior of microcomposite particles using a laser scanning micrometer
The densification behavior of silica-coated alumina particles was investigated during sintering using a laser scanning micrometer. Traditional dilatometric techniques require contact between a push-rod and the...
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Article
Effects of Sample Size on Surface-Tension Measurements of Nickel in Reduced-Gravity Parabolic Flights
Surface tensions of molten metals have been reported in the literature by application of many “standard” techniques: sessile-drop, maximum bubble pressure, pendant-drop, and capillary-rise methods. Great exper...
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Article
Preface
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Article
Viscosity of superalloy 718 by the oscillating vessel technique
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Article
Comparison of Miogtiwiures and Magnetic Properties of Melt Spun and Plasmla Sprayed Alloys of Fe-Rare Earti-B
Samples of Fe76RE16B8 have been prepared by melt spinning and plasma deposition. The samples were fully saturated by cooling fran 350°C in a 5 kOe field. The room temperature coercivities of these samples are rep...
