NEA-1799 IFPE/AEKI-EDB-E110.

1. NAME OF EXPERIMENT:  IFPE/AEKI-EDB-E110.

3. DESCRIPTION OF EXPERIMENT

Experimental series have been performed at the Hungarian Academy of Sciences KFKI Atomic Energy Research Institute (AEKI) with E110 and Zircaloy claddings. The aims of these experiments were to study and to compare the mechanical properties of the cladding materials and to investigate the effect of oxidation and hydrogen uptake on the mechanical performance of the claddings under accident conditions. The objectives have been achieved through separate effect tests with well defined conditions.

The main results of the tests have been collected into the Experimental Database of E110 Claddings under Accident Conditions. The database involves the data of several experimental series in the following main directories:
  

- Cladding ballooning tests (more than 170 tube tests).
- Tensile tests with tube and sheet specimens (more than 100 samples).
- Oxidation tests between 500-120 deg.C.
- Ring compression tests (more than 100 samples).


Most of the tests were carried out with E110 cladding, but several experimental points were produced with Zircaloy-4 cladding as well for comparison purposes. The database includes not only the on-line measured data, but the results of post-test examinations (visual observations, metallographic analysis, SEM analysis). Experimental technical reports and some selected papers describing the test are also available in the database.


The AEKI experimental data on cladding behaviour under accident conditions has been used already in several international projects for the development and validation of transient fuel behaviour codes (TRANSURANUS, FRAP-T6).

- E. Perez-Fero, Cs. Gyori, L. Matus, L. Vasaros, Z. Hozer, P. Windberg, L.
Maroti, M. Horvath, I. Nagy, A. Pinter-Csordas, T. Novotny:
Experimental Database of E110 Claddings under Accident Conditions
AEKI-FRL-2007-123-01/01, Budapest, November 2007
- E. Perez-Fero, L. Vasaros, Cs. Gyori, P. Windberg, Z. Hozer, M. Horvath, I.
Nagy, A. Pinter-Csordas, E. Szabo:
Experimental Database of E110 Cladding Alloy Oxidized in Hydrogen Rich Steam
AEKI-FRL-2005-479-01/02-M1, Budapest, September 2006
- Cs. Gyori, M. Horvath, Z. Hozer, L. Matus, I. Nagy, O. Prokopiev, P. Windberg:
Experimental Database of Zr1%Nb Cladding Alloy for Model Development and Code
Validation
Extra Project FIKS-CT2001-00173 (August, 2002)
- L. Matus, Z. Hozer, L. Vasaros:
Some experimental results on hydrogen - cladding material interactions
Paper presented at the Enlarged Halden Programme Group Meeting (Lillehammer,
Norway, 11-16 March 2001)
- Cs. Gyori, Z. Hozer, L. Maroti, L. Matus:
VVER Ballooning Experiments, presented at the Enlarged Halden Programme Group
Meeting (Lillehammer, Norway, 15-20 March 1998)
- A. Griger, L. Maroti, L. Matus and P. Windberg:
Ambient and high temperature mechanical properties of ZrNb1 cladding with
different oxygen and hydrogen content, presented at the Enlarged Halden
Programme Group Meeting (24-29 May 1999, Loen)
- J. Frecska, L. Matus, L. Vasaros:
Hydrogen Uptake of Zr1%Nb Cladding by Steam Oxidation during Loss of Coolant
Accident, IAEA Coordinated Research Project Contract No.: 9284/R0 (Sept.1997)
- L. Matus, L. Vasaros and Z. Hozer:
Experimental Results on the interactions between Hydrogen and Zirconium
Claddings (KFKI-2001-02/G Report)
- Z. Hozer, L. Matus, M. Horvath, L. Vasaros, A. Griger, L. Maroti:
Ring Compression Tests with Oxidised and Hydrided ZR1%Nb and Zircaloy-4
Claddings (KFKI-2002-01/G Report)
- J. Frecska, G. Konczos, L. Maroti, L. Matus:
Oxidation and Hydriding of ZR1%Nb Alloys by Steam (KFKI-1995-17/G Report)
- L. Vasaros and L. Matus:
Steam Oxidation of Zr-Alloys with H Content Release of Absorbed Hydrogen,
presented at the 5th International QUENCH Workshop (Forschungszentrum Karlsruhe
October 19-21, 1999)
- L. Matus and L. Vasaros:
Hydrogen Release Kinetics during Steam Oxidation of Zr1%Nb and Zircaloy-4,
presented at the 6th International QUENCH Workshop (Forschungzentrum Karlsruhe,
October 10-12, 2000)
- Z. Hozer, L. Maroti, L. Matus and P. Windberg:
Experiments With VVER Fuels to Confirm Safety Criteria (TopFuel 2001 P2-14)
- E. Perez-Fero, Z. Hozer, P. Windberg, I. Nagy, A. Vimi, N. Ver, L. Matus, M.
Kunstar, T. Novotny, M. Horvath, Cs. Gyori:
Behavior of Zr1%Nb Fuel Cladding under Accident Conditions
Proceedings of the 2007 International LWR Fuel Performance Meeting (San
Francisco, California, September 30-October 3, 2007, Paper 1018)

15. NAME AND ESTABLISHMENT OF AUTHORS

E. Perez-Fero, Cs. Gyori, L. Matus, L. Vasaros, Z. Hozer, P. Windberg, L. Maroti, M. Horvath, I. Nagy, A. Pinter-Csordas, T. Novotny
Hungarian Academy of Sciences
KFKI Atomic Energy Research Institute
P.O.Box 49
Konkoly Thege M. ut 29/33
H-1525 Budapest
HUNGARY

Cladding ballooning tests (more than 170 tube tests)
Tensile tests with tube and sheet specimens (more than 100 samples)
Oxidation tests between 500-1200 deg.C
Ring compression tests (more than 100 samples)
Reports and publications in electronic form