PDS-XADS Structural material to be used in lead- bismuth Development Needs ADOPT Karlsruhe meeting of March 14, 2002 L. CINOTTI Ansaldo Nucleare Divisione

PDS-XADS

Structural material to be used in lead-bismuth

Development NeedsADOPT Karlsruhe meeting of March 14, 2002

L. CINOTTIL. CINOTTI

Ansaldo NucleareDivisione di ANSALDO ENERGIA S.p.A. Ansaldo NucleareDivisione di ANSALDO ENERGIA S.p.A.

ADOPT Karlsruhe meeting of March 14, 2002

Well known materials like 316L and modified 9Cr1Mo seem adequate for use up to 450°C in flowing lead-bismuth with a speed below 2m/s and oxygen activity control.


Structural material candidate for use in lead-bismuth

State of art




1- Operating ConditionsTemperature < 450°CPb-Bi speed < 0,5 m/sNegligible irradiationOxygen activity control

2- Selected materialStainless steel 316 L

3- R&D needsConfirmation of the adequacy, particularly for

welded joints

Components for XADS cooled by Pb-BiMain vessel IHXsPurification Unit In vessel refuelling system




1- Operating ConditionsTemperature < 450°CPb-Bi speed < 1m/sLow neutronic irradiation: <2 dpa in the lifeOxygen activity control

2- Selected materialStainless steel 316 L

3- R&D needsConfirmation of the adequacy, particularly for

welded joints

Components for XADS cooled by Pb-BiInner vessel Diagrid




1- Operating ConditionsTemperature < 500°CPb-Bi speed < 0,5 m/sHigh neutronic irradiation: < 30 dpa over

lifetimeOxygen activity control

2- Selected materialModified 9Cr 1Mo (Reference)Aluminised AIM austenitic stainless steelNimonic PE 16Russian material

3- R&D needsConfirmation of the aluminization processConfirmation of the adequacy of the materials, particularly

for welded joints

Components for XADS cooled by Pb-BiFuel rods




1- Operating ConditionsTemperature< 450°CPb-Bi speed < 0,5 m/sHigh neutronic irradiation: < 30 dpa over

lifetimeOxygen activity control

2- Selected material9Cr 1Mo

3- R&D needsConfirmation of the adequacy of the materials, particularly

for welded joints

Components for XADS cooled by Pb-BiFuel wrapper




1- Operating ConditionsTemperature< 450°CPb-Bi speed < 0,5 m/sHigh neutronic irradiation: < 40 dpa over

lifetimeOxygen activity controlSpallation products

2- Selected material9Cr 1Mo

3- R&D needsConfirmation of the adequacy of the materials, particularly

for welded joints

Components for XADSTarget Unit




1- Operating ConditionsTemperature< 500°CPb-Bi speed < 2 m/sHigh neutronic irradiation: < 15 dpa per yearHigh proton flux: < 30 µA/(cm2*s), 600 MeV for Pb-Bi system

< 50 µA/(cm2*s), 600 MeV or 30 µA/(cm2*s), 800 MeV for gas system

Oxygen activity controlSpallation products

2- Selected material9Cr 1Mo ………..………..

3- R&D needsConfirmation of the adequacy of the material

Components for XADSBeam Window

Documents

PDS-XADS Structural material to be used in lead- bismuth Development Needs ADOPT Karlsruhe meeting of March 14, 2002 L. CINOTTI Ansaldo Nucleare Divisione