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Paper Titles
Preface
p.2
Corrosion and Corrosion Fatigue Characteristics of CF8A Steel Degraded for 3 Months at 400°C
p.3
Fatigue Life Evaluation of an Actual Structure under the Irregular Loading Using an Acceleration Test
p.9
A Study on the Estimation of Fracture Behaviour for a Circumferentially Through-Wall Cracked Pipe
p.15
Effect of Loading Frequency on Fatigue Crack Growth Behaviour and Microstructural Damage in P92 HAZ
p.21
Development of Web-Based Fatigue Life Evaluation System for Reactor Pressure Vessel
p.25
Socket Weld Integrity in Nuclear Piping under Fatigue Loading Condition
p.31
Failure Probability Estimation of Pressure Tube Using Failure Assessment Diagram
p.37
Evaluation of the Cleavage Fracture Toughness of RPV Steels Using Small Bend Specimens
p.43

Corrosion and Corrosion Fatigue Characteristics of CF8A Steel Degraded for 3 Months at 400°C

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Abstract:

In this paper, as a fundamental study to evaluate fracture characteristics and material degradation by corrosion, evaluated electrochemical corrosion and corrosion fatigue characteristics of CF8A steel using as a material of the piping system in nuclear power plant. CF8A steel was artificially degraded at 400°C for 3 months. The environmental test condition is 3.5wt.% NaCl solution of room temperature. Corrosion rate of degraded CF8A steel in NaCl solution of room temperature increases with concentration of NaCl solution increase. However, concentration of NaCl solution will be more than 4.0wt.%, it shows decreasing tendency. Crack growth rates of degraded and not-degraded CF8A steel in air condition do not show remarkable difference. However, in 3.5wt.% NaCl solution, crack growth rates of them showed higher than ones in air. Particularly, crack growth rate of degraded material remarkably increases compare to one of notdegraded material.

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Periodical:

Solid State Phenomena (Volume 120)

Pages:

3-8

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.120.3

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Online since:

February 2007

Authors:

Dong Ho Bae, Seong Cheol Jang, Gyu Young Lee

Keywords:

Artificial Degradation, Corrosion, Corrosion Fatigue, Corrosion Rate, Crack Growth Rate (da/dN), Electrochemical Corrosion

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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