In situ investigations of the hydrogen uptake of zirconium alloys during steam oxidation - 2016-0041
- Karlsruhe Institute of Technology, Institute for Applied Materials, P.O. Box 3640, D-76021 Karlsruhe (Germany)
- Technische Universitat Munchen, FRM II and Physik-Department E21, James-Franck-Str. 1, D-85748 Garching (Germany)
- Neutron Imaging and Activation Group, Paul Scherrer Institut, CH-5232, Villigen (Switzerland)
The hydrogen uptake during steam oxidation of Zircaloy-4 and E110 was investigated in situ in the temperature range of 1,000-1,300 deg. C. The procedure to determine hydrogen concentrations from the neutron radiographs measured is explained in detail. Very fast hydrogen absorption (less than 10 s) was observed directly after starting the steam injection. The maximal hydrogen concentration reached increased with increasing temperatures. A slight release of hydrogen was observed after this first fast hydrogen uptake. The hydrogen concentration depended on time with a power of -1/8. An enhanced hydrogen uptake occurred if the oxidation switched into the breakaway mode. The hydrogen concentration increased by nearly one order of magnitude. (authors)
- Research Organization:
- ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA, 19428-2959 (United States)
- OSTI ID:
- 22791389
- Resource Relation:
- Conference: 18. International Symposium on Zirconium in the Nuclear Industry, Hilton Head, SC (United States), 15-19 May 2016; Other Information: Country of input: France; 38 refs.
- Country of Publication:
- United States
- Language:
- English
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