Hydrogen pickup and redistribution in alpha-annealed Zircaloy-4 [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 44 pages : digital, PDF file
Additional Creators:: United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information

Access Online

www.osti.gov

Availability

Finding items...

Restrictions on Access:

Free-to-read Unrestricted online access

Summary:

Zircaloy-4, which is widely used as a core structural material in Pressurized-Water Reactors (PWR), picks up hydrogen during service. Hydrogen solubility in Zircaloy-4 is low and hydrides precipitate after the Zircaloy-4 matrix becomes supersaturated with hydrogen. These hydrides embrittle the Zircaloy-4. To study hydrogen pickup and concentration, a postirradiation nondestructive radiographic technique for measuring hydrogen concentration was developed and qualified. Experiments on hydrogen pickup were conducted in the Advanced Test Reactor (ATR). Ex-reactor tests were conducted to determine the conditions for which hydrogen would dissolve, migrate, and precipitate. Finally, a phenomenological model for hydrogen diffusion was indexed to the data. This presentation describes the equipment and the model, presents the results of experiments, and compares the model predictions to experimental results.

Report Numbers:

E 1.99:wapd-t--3047
E 1.99: conf-950926--1
conf-950926--1
wapd-t--3047

Subject(s):

Other Subject(s):

Note:

Published through SciTech Connect.
06/01/1996.
"wapd-t--3047"
" conf-950926--1"
"DE96011466"
11. international symposium on zirconium in the nuclear industry, Garmisch-Partenkirchen (Germany), 11-14 Sep 1995.
Peters, H.R.; Franklin, D.G.; Kammenzind, B.F.; Duffin, W.J.
Bettis Atomic Power Lab., West Mifflin, PA (United States)

Funding Information:

AC11-93PN38195

View MARC record | catkey: 14456594