TY - GEN
T1 - Repassivation potential of Alloy 22 in sodium and calcium chloride brines
AU - Rebak, Raul B.
AU - Ilevbare, Gabriel O.
AU - Carranza, Ricardo M.
PY - 2008
Y1 - 2008
N2 - A comprehensive matrix of 60 tests was designed to explore the effect of calcium chloride vs. sodium chloride and the ratio R of nitrate concentration over chloride concentration on the repassivation potential of Alloy 22. Tests were conducted using the cyclic potentiodynamic polarization (CPP) technique at 75°C and at 90°C. Results show that at a ratio R of 0.18 and higher nitrate was able to inhibit the crevice corrosion in Alloy 22 induced by chloride. Current results fail to show in a consistent way a different effect on the repassivation potential of Alloy 22 for calcium chloride solutions than for sodium chloride solutions.
AB - A comprehensive matrix of 60 tests was designed to explore the effect of calcium chloride vs. sodium chloride and the ratio R of nitrate concentration over chloride concentration on the repassivation potential of Alloy 22. Tests were conducted using the cyclic potentiodynamic polarization (CPP) technique at 75°C and at 90°C. Results show that at a ratio R of 0.18 and higher nitrate was able to inhibit the crevice corrosion in Alloy 22 induced by chloride. Current results fail to show in a consistent way a different effect on the repassivation potential of Alloy 22 for calcium chloride solutions than for sodium chloride solutions.
UR - http://www.scopus.com/inward/record.url?scp=55349131681&partnerID=8YFLogxK
U2 - 10.1557/proc-1107-527
DO - 10.1557/proc-1107-527
M3 - Conference contribution
AN - SCOPUS:55349131681
SN - 9781605110790
T3 - Materials Research Society Symposium Proceedings
SP - 527
EP - 535
BT - Materials Research Society Symposium Proceedings - Scientific Basis for Nuclear Waste Management XXXI
PB - Materials Research Society
T2 - 31st International Symposium on the Scientific Basis for Nuclear Waste Management
Y2 - 16 September 2007 through 21 September 2007
ER -