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Refractory Metals in Space Electric Power Conversion Systems

  • J. W. SemmelJr.

Abstract

The status of refractory alloy applications to space electric power conversion systems is reviewed with emphasis on the work related to alkali metal Rankine cycle systems for future power requirements exceeding 100 kw. Columbium and tantalum alloys are considered for alkali metal containment for periods exceeding 10,000 hours at temperatures near 2000°F. In addition, molybdenum alloys are considered for alkali metal vapor turbine wheel and blade applications where weldability is not essential. Results and conclusions from corrosion and erosion tests of refractory alloys in alkali metals are presented. The fabrication of power plant development components from refractory alloys is discussed.

Keywords

Postweld Heat Treatment Rankine Cycle Vapor Quality Molybdenum Alloy Refractory Alloy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© American Institute of Mining, Metallurgical, and Petrolium Engineers, Inc. 1968

Authors and Affiliations

  • J. W. SemmelJr.
    • 1
  1. 1.Space Power and Propulsion Section of the Missile and Space DivisionGeneral Electric CompanyCincinnatiUSA

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