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Search Publications by: Maureen E. Williams (Fed)

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Displaying 51 - 54 of 54

Alpha Case Thickness Modeling in Investment Castings

December 1, 2000
Author(s)
William J. Boettinger, Maureen E. Williams, Sam R. Coriell, Ursula R. Kattner, B A. Mueller
The alpha case thickness at the surface of a Ti-6Al-4V step wedge investment casting has been measured and successfully predicted. The prediction uses temperature-time results obtained from a heat flow simulation of the casting that was performed with a

The Reactions of Zinc Vapor With Zircaloy-4 and Pure Zirconium

January 1, 2000
Author(s)
Maureen E. Williams
The need for the Nuclear Regulatory Commission to extend the existing licenses on temporary dry storage containers of spent radioactive fuel, coated with zinc paint to prevent corrosion, from 20 years to 100 years initiated this study. The investigation of

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

Warm-Hip Compaction of Attrition-Milled Iron Alloy Powders

January 1, 1999
Author(s)
J C. Rawers, Frank S. Biancaniello, Rodney D. Jiggetts, Richard J. Fields, Maureen E. Williams
Warm-HIP (Hot-Isostatic-Pressure) compaction of attrition-milled iron alloy powders resulted in production of high strength, fully-dense compacts of nanostructured iron alloy powders. Commercial development of nanostructured materials has been largely