Details

Autor(en) / Beteiligte

• TAKEDA, Seiichiro
• NAGAI, Takayuki
• KOIZUMI, Tsutomu

Titel

Corrosion Behavior of Materials in FBR Spent Fuel Reprocessing Solutions

Ist Teil von

• Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1994/02/28, Vol.36(2), pp.146-157

Ort / Verlag

Atomic Energy Society of Japan

Erscheinungsjahr

1994

Quelle

Elektronische Zeitschriftenbibliothek

Beschreibungen/Notizen

• Corrosion performance of five types of construction materials was studied in actual reprocessing solutions prepared from FBR spent fuel. Immersed corrosion tests and electrochemical measurements were conducted with three kinds of solutions, namely dissolved solution, high active liquid waste (HAW), and pure nitric acid solution, for the purpose of comparing the corrosion effects on various alloys of each solution. The corrosion rates of 310Nb or 304ULC tested in dissolved solution were higher than those tested in pure nitric acid, whereas Ti, Ti-5Ta or Zr did not show exact differences between those two kinds of solutions. Corrosion potentials of 310Nb, Ti-5Ta or Zr measured in dissolved solution were nobler than those measured in HAW. The reason for these phenomena is thought to be due to an increase in cathodic reaction at the metals surface because of the presence of coexisting Pu in the solutions.