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Originalveröffentlichung
DOI: 10.1520/STP159720160041

In Situ Investigations of the Hydrogen Uptake of Zirconium Alloys during Steam Oxidation

Grosse, Mirco; Steinbrueck, Martin; Schillinger, Burkhard; Kaestner, Anders

Abstract (englisch):
The hydrogen uptake during steam oxidation of Zircaloy-4 and E110 was investigated in situ in the temperature range of 1,000–1,300C. 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.


Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Proceedingsbeitrag
Jahr 2018
Sprache Englisch
Identifikator ISBN: 978-0-8031-7641-6
ISSN: 1050-7558
KITopen ID: 1000083042
HGF-Programm 32.02.11; LK 01
Erschienen in Zirconium in the Nuclear Industry: 18th International Symposium, Hilton Head Island, SC, USA, May 15 - 19, 2016. Ed.: R. Comstock
Verlag ASTM International, West Conshohocken (PA)
Seiten 1114–1135
Serie ASTM International selected technical papers ; STP 1597
Schlagworte hydrogen absorption, hydrogen release, zirconium alloys, neutron radiography, in situ investigations
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