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SUMMARY:Effect of thiosulfate on the SCC behavior of carbon steel welds ex
 posed to concrete pore water under anoxic conditions
DTSTART;VALUE=DATE-TIME:20171102T023000Z
DTEND;VALUE=DATE-TIME:20171102T030000Z
DTSTAMP;VALUE=DATE-TIME:20260718T055042Z
UID:indico-contribution-1200@events01.synchrotron.org.au
DESCRIPTION:Speakers: Sebastien CAES (SCK-CEN)\nThe Supercontainer (SC) is
  the reference concept for the post-conditioning of vitrified high-level n
 uclear waste and spent fuel in Belgium. It comprises a prefabricated concr
 ete buffer that completely surrounds a carbon steel overpack. Welding is b
 eing considered as a final closure technique of the carbon steel overpack 
 in order to ensure its water tightness. Welding is known to induce residua
 l stresses near the weld zone\, which may lead to an increased susceptibil
 ity to stress corrosion cracking (SCC). In this study\, slow strain rate t
 ests were conducted to study the SCC behavior of plain and welded P355 QL2
  grade carbon steel exposed to an artificial concrete pore water solution 
 that is representative for the SC concrete buffer environment. The tests w
 ere performed at 140°C\, a constant strain rate of 5 × 10-7 s-1 and at o
 pen circuit potential under anoxic conditions. The effect of thiosulfate o
 n the SCC behavior was investigated up to levels of 5.35 mM S2O32- (600 mg
  L-1).\n\nhttps://events01.synchrotron.org.au/event/51/contributions/1200/
LOCATION:
URL:https://events01.synchrotron.org.au/event/51/contributions/1200/
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