Effect of Cu and Ni on sulfide film formation and corrosion behavior of pressure vessel steel in acid sour environment

2014 ◽  
Vol 313 ◽  
pp. 396-404 ◽  
Author(s):  
Sung Jin Kim ◽  
Hwan Gyo Jung ◽  
Gyu Tae Park ◽  
Kyoo Young Kim
Keyword(s):  
Corrosion Behavior ◽  
Pressure Vessel ◽  
Film Formation ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Sulfide Film

Corrosion Behavior of Pressure Vessel Steel Exposed to Residual Bubbles After Cavitation Bubble Collapse

CORROSION ◽  
2011 ◽  
Vol 67 (2) ◽  
pp. 025001-1-025001-8 ◽  
Author(s):  
H. Soyama
Keyword(s):  
Corrosion Behavior ◽  
Pressure Vessel ◽  
Photoelectron Spectroscopy ◽  
Cavitation Bubble ◽  
Open Circuit ◽  
Bubble Collapse ◽  
Pressure Vessel Steel ◽  
Pt Electrode ◽  
Vessel Steel ◽  
Normal Water

Abstract The corrosion potential of pressure vessel steel after exposure to residual bubbles and the open-circuit potential of Pt during cavitation were measured to investigate the corrosion behavior induced by residual bubbles after cavitation bubble collapse (as distinct from erosion caused by cavitation impact). The surfaces of the corrosion specimens were also investigated using x-ray photoelectron spectroscopy. It was shown that the residual bubbles shift the potential of a Pt electrode to a more anodic potential and that the oxide layer induced by the residual bubbles is different from that produced by normal water without residual bubbles.

Dislocation structures in 16MND5 pressure vessel steel strained in uniaxial tension at −196°C

2005 ◽  
Vol 96 (8) ◽  
pp. 909-912
Author(s):  
Karel Obrtlík ◽  
Christian Robertson ◽  
Bernard Marini
Keyword(s):  
Uniaxial Tension ◽  
Pressure Vessel ◽  
Pressure Vessel Steel ◽  
Vessel Steel

scholarly journals Micromagnetic Characterization of Operation-Induced Damage in Charpy Specimens of RPV Steels

2021 ◽  
Vol 11 (7) ◽  
pp. 2917
Author(s):  
Madalina Rabung ◽  
Melanie Kopp ◽  
Antal Gasparics ◽  
Gábor Vértesy ◽  
Ildikó Szenthe ◽  
...  
Keyword(s):  
Neutron Irradiation ◽  
Pressure Vessel ◽  
Operating Conditions ◽  
Magnetic Characteristics ◽  
Pressure Vessel Steel ◽  
Training Procedure ◽  
Vessel Steel ◽  
Before And After ◽  
The Individual ◽  
Magnetic Adaptive Testing

The embrittlement of two types of nuclear pressure vessel steel, 15Kh2NMFA and A508 Cl.2, was studied using two different methods of magnetic nondestructive testing: micromagnetic multiparameter microstructure and stress analysis (3MA-X8) and magnetic adaptive testing (MAT). The microstructure and mechanical properties of reactor pressure vessel (RPV) materials are modified due to neutron irradiation; this material degradation can be characterized using magnetic methods. For the first time, the progressive change in material properties due to neutron irradiation was investigated on the same specimens, before and after neutron irradiation. A correlation was found between magnetic characteristics and neutron-irradiation-induced damage, regardless of the type of material or the applied measurement technique. The results of the individual micromagnetic measurements proved their suitability for characterizing the degradation of RPV steel caused by simulated operating conditions. A calibration/training procedure was applied on the merged outcome of both testing methods, producing excellent results in predicting transition temperature, yield strength, and mechanical hardness for both materials.

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