Creep Behaviour of a Zr 1 wt% Nb Alloy/nat Elevated Temperatures

0455480 - ÚFM 2016 RIV PL eng C - Konferenční příspěvek (zahraniční konf.)
Kvapilová, Marie - Kuchařová, Květa - Kloc, Luboš - Sklenička, Václav
Creep Behaviour of a Zr 1 wt% Nb Alloy/nat Elevated Temperatures.
Acta Physica Polonica A, vol. 128, č. 4. Warsaw: Polish Academy of Sciences, 2015, s. 548-551. ISSN 0587-4246. E-ISSN 1898-794X.
[ISPMA 13 - International Symposium on Physics of Materials /13./. Praha (CZ), 31.08.2014-04.09.2014]
Grant CEP: GA TA ČR TA02011025; GA MŠMT(CZ) ED1.1.00/02.0068
Institucionální podpora: RVO:68081723
Klíčová slova: creep behaviour * ZrNb alloy * claddint tubes
Kód oboru RIV: JJ - Ostatní materiály

Article presents experimental data regarding creep behaviour of a Zr-1wt.%Nb alloy at elevated (623 K) and at high temperatures (873 – 1123 K) corresponding to loss-of-cooling (LOCA) situation of fuel cladding tubes for nuclear reactors. For an elaboration of methodological procedure and comparison purposes, the tensile creep tests were conducted using both constant stress and constant load over a wide range of applied stress. The substantial differences in the acquired creep data between constant stress and constant load creep testing were found especially at high stresses and large creep strain levels.
Trvalý link: http://hdl.handle.net/11104/0256074