Manufacturing of ODS Test Pieces for Evaluation of Strength -Result of Test Pieces Manufacturing-

Kihara, Yoshiyuki; Seki, Masayuki; Fujio, Ishibashi,; Hirako, Kazuhiko*; Tsukada, Tatsuya*

The irradiation test to gather the creep rupture data of the MARICO-2 test pieces manufactured from Oxide Dispersion Strengthened steel (ODS steel) cladding tube in JFY 2004. Therefore, to improve the reliability of the strength evaluation of the ODS steel cladding tube, it was planned to supplement the creep rupture data in that had been obtained so far. The strength evaluation test pieces supplied to this examination was manufactured by the request of the JNC OEC system nuclear fuel engineering group. This test pieces were manufactured by using Martensitic ODS and Ferritic ODS as well as MARICO-2 and CMIR-6. The specification of the test piece was same as two steel types. The problem did not occur for manufacturing the test pieces (20 pices of Martensitic ODS and 12 pices of Ferritic ODS) from April 5, 2005 to May 13, 2005. It was provided for JNC OEC System Division nuclear fuel group at the May, 2005.