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Corrosion Studies of Liquid Metal Heat Pipe Systems at 1000° to 1800°C

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Abstract

The compatibility of heat pipe structural alloys with different working fluids can be conveniently evaluated with reflux capsules. Capsule tests with refractory metal seamless tubing have been conducted in vacuum at temperatures of 1000° to 1800°C and at times to 1000 hours. Systems evaluated to date are: TZM with indium; Cb-1Zr with lead, calcium, and barium; and Ta-10W with indium, calcium, lead, thallium, and barium. The observed corrosion behavior of the various systems is associated with the nature of oxygen in the particular system. Severe attack has been observed in the lead and thallium systems, while calcium produces very little attack, especially in contact with Ta-10W. Corrosion occurring with calcium is mainly confined to very shallow intergranular penetration.

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© 1970 Springer Science+Business Media New York

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Johnson, G.D. (1970). Corrosion Studies of Liquid Metal Heat Pipe Systems at 1000° to 1800°C. In: Draley, J.E., Weeks, J.R. (eds) Corrosion by Liquid Metals. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1845-3_18

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  • DOI: https://doi.org/10.1007/978-1-4684-1845-3_18

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-1847-7

  • Online ISBN: 978-1-4684-1845-3

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