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Cluster carburizing. Progress report, June 1, 1974--May 31, 1975

Description: Tantalum alloys containing 27 at percent Hf were vacuum carburized at 1900/sup 0/K in flowing methane. The rate of carbon absorption, for methane pressure between 13 and 133 Pa, was determined from the rate of carbide formation. The rates determined by this technique were similar to those observed for the absorption of carbon in pure Ta. In a preliminary test of the cluster carburizing concept, a solutionized and quenched sample was simultaneously aged hardened and carburized at 1273/sup 0/K fo… more
Date: June 1, 1974
Creator: Morral, J. E.
Item Type: Refine your search to only Report
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Concept and preliminary design of double tubesheet connector region for design and steady-state conditions. [LMFBR]

Description: In this analysis the structural integrity of the double tubesheet connector for the LMFBR demonstration plant steam generator is investigated for design and steady state conditions. Although the evaporator and superheater are to be interchangeable, only the steam outlet end of the evaporator is investigated. This was selected because the mean temperature differences between the tubesheets, tubes and connector are largest here at steady state, thus yielding the highest thermal loads. Combined wi… more
Date: June 1, 1974
Creator: Rinne, W.A.
Item Type: Refine your search to only Report
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