Oxide properties and stress corrosion cracking behaviour for Alloy 600 in leaded caustic solutions at high temperature |
| |
Authors: | Dong-Jin Kim Hyuk Chul Kwon Hyun Wook Kim Seong Sik Hwang Hong Pyo Kim |
| |
Affiliation: | Nuclear Materials Research Division, Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong-gu, Daejeon, Republic of Korea |
| |
Abstract: | The stress corrosion cracking behaviour of Alloy 600 in caustic solutions with and without PbO at 315 °C was investigated by means of slow strain rate tension tests. The characterisation of the oxide that formed on Alloy 600 was derived from transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy. Lead was incorporated into the oxide in a metallic lead state and a lead oxide state, which degraded the passivity and induced PbSCC susceptibility. NiB was used as an inhibitor. It reduced the lead incorporation level in the oxide layer and decreased PbSCC susceptibility. |
| |
Keywords: | A. Alloy B. EIS C. Passivity C. Stress corrosion |
本文献已被 ScienceDirect 等数据库收录! |