scholarly journals Effect of thermal ageing and dissolved gas on corrosion of 308L stainless steel weld metal in simulated PWR primary water

Author(s):  
Xiaodong Lin ◽  
Qunjia Peng ◽  
Yaolei Han ◽  
En-Hou Han ◽  
Wei Ke
CORROSION ◽  
10.5006/2902 ◽  
2019 ◽  
Vol 75 (4) ◽  
pp. 377-388 ◽  
Author(s):  
Xiaodong Lin ◽  
Qunjia Peng ◽  
En-Hou Han ◽  
Wei Ke

Double loop electrochemical potentiokinetic reactivation (DL-EPR) was applied to evaluate thermal aging of 308L stainless steel weld metal. It was found that the activation and reactivation peaks of DL-EPR curve were induced by dissolution of austenite and δ-ferrite, respectively. Before saturation of hardness, the linear relationship between reactivation ratio and hardness could be used for assessing the thermal aging-induced hardening. In the following thermal aging process, the reactivation ratio is applicable to assess the occurrence of the saturation of thermal aging-induced hardening. The results demonstrated that the DL-EPR test is applicable to assess the evolution of thermal aging.


1991 ◽  
Vol 39 (4) ◽  
pp. 503-516 ◽  
Author(s):  
J.M. Vitek ◽  
S.A. David ◽  
D.J. Alexander ◽  
J.R. Keiser ◽  
R.K. Nanstad

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