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Displaying 26 - 44 of 44

Behavior and Performance of Amorphous and Nanocrystalline Metals in Ballistic Impacts

September 1, 2000
Author(s)
L S. Magness, L Kesckes, M Chung, D Kapoor, Frank S. Biancaniello, Stephen D. Ridder
Depleted uranium alloys that exhibit adiabetic shear localization and failure resulting in a self-sharpening mecanism offer superior armor penetration capability when compared to conventional tungsten heavy alloys. Both amorphous and nanocrystalline metals

Powder Metallurgy High Nitrogen Stainless Steel

December 1, 1999
Author(s)
Frank S. Biancaniello, Rodney D. Jiggetts, Richard E. Ricker, Stephen D. Ridder
High Nitrogen Stainless Steels (HNSS) are a class of materials that possess a unique combination of outstanding strength, ductility, and corrosion properties. In this paper we report on the advantages of producing these materials via inert gas atomization

Characterization of Atomized High Nitrogen Stainless Steel as a Possible Implant Material

May 1, 1999
Author(s)
Frank S. Biancaniello, Rodney D. Jiggetts, Richard E. Ricker, Stephen D. Ridder
High Nitrogen Stainless Steel (HNSS) can simultaneously have high strength (ultimate and yield), high hardness, high ductility, and outstanding corrosion properties. These properties can be further improved if these HNSS materials are produced from Hot

Characterization of Nanostructured Tungsten Heavy Alloy Produced by Double Ball Milling

May 1, 1999
Author(s)
Frank S. Biancaniello, Stephen D. Ridder, Maureen E. Williams, Rodney D. Jiggetts, L S. Magness
Tungsten powder was ball milled in a controlled atmosphere environment with rapidly solidified powders to produce a nanostructured material. The milled powders were then Hot Isostatic Press (HIP) consolidated. The metallic binder phase milled with the

Temperature Imaging Measurements With a Two Wavelength Imaging Pyrometer

April 1, 1999
Author(s)
J E. Craig, D Lee, R A. Parker, Frank S. Biancaniello, Stephen D. Ridder
An innovative two-wavelength, imaging pyrometer with analysis software provides a method to monitor process uniformity, improve quality and reduce cost in advanced materials processing techniques. The design has achieved high imaging quality and the system

Numerical Simulation of Atomization Gas Flows

December 1, 1998
Author(s)
Pedro I. Espina, Stephen D. Ridder, U Piomelli, Frank S. Biancaniello
The gas-only flow in a close-coupled, gas-metal atomizer is Studied to determine the influence of operational parameters on The structure of the flow field. A parametric study is conducted to determine the effects of jet exit pressure ratio, jet
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