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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Corrosion Science and Technology
Journal Basic Information
Journal DOI :
The Corrosion Science Society of Korea
Editor in Chief :
Volume & Issues
Volume 11, Issue 6 - Dec 2012
Volume 11, Issue 5 - Oct 2012
Volume 11, Issue 4 - Aug 2012
Volume 11, Issue 3 - Jun 2012
Volume 11, Issue 2 - Apr 2012
Volume 11, Issue 1 - Feb 2012
Selecting the target year
Steel Corrosion Map of Vietnam
Cole, Ivan ; Corrigan, Penny ; Nguyen, Viet Hue ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 103~107
DOI : 10.14773/cst.2012.11.4.103
In the framework of an International cooperation program in Australia-Asia, the atmospheric corrosion of metals in five nations located in this tropical zone: Australia, Vietnam, Thailand, Philippines and Indonesia was investigated. In this program, mild steel, zinc and copper were tested on a set of sites, representative for different climatic conditions: severe marine, marine, industrial, urban and rural, simultaneously with the collection of climatic parameters and pollutants. Based on the data obtained in the Program and referring to the bank of data collected in the Vietnam National Projects, modeling was used to construct a corrosion map of steel for Vietnam. The correlation of the data derived from the map compared with those from National Projects is very high, in most cases, differing by less than 2-3%.
Corrosion Behavior of Silicon Carbide/7091 Aluminum Matrix Composites
Kang, Wooseung ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 108~111
DOI : 10.14773/cst.2012.11.4.108
The effects of volume fraction (15-30%) of SiC particulate reinforcements on the corrosion behavior of SiCp/7091 Al composites in the 3.5% NaCl solution were studied by electrochemical techniques and scanning electron microscopy. The results showed that the amount of SiC particulate reinforcements did not cause much difference in the corrosion behavior of SiCp/7091 Al composites but the corrosion rate was proportional to the amount of SiCp reinforcement. And numerous pits and severe dissolution of the matrix was observed probably due to the discontinuities and galvanic effects between Al matrix and SiC reinforcements.
Characteristics of Cathodic Protection with ICCP Anode in Reinforced Concrete
Jeong, Jin-A ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 112~119
DOI : 10.14773/cst.2012.11.4.112
This paper presents the results of a study of the effectiveness of cathodic protection with insoluble ICCP anode in reinforced concrete structures. Experimental tests were carried out on reinforced concrete specimens with 3 different commercial anodes for ICCP system in order to compare the effectiveness of cathodic protection. Results have shown that the kinds of anode for ICCP is irrelevant to the effectiveness of cathodic protection, In case of ICCP, the performance of cathodic protection has no relationship to the kinds of anode especially in concrete specimens with sea water condition. It has been found slightly more effective at Ti-Rod anode in fresh water condition and Ti-Mesh anode in atmospheric condition.
Fatigue crack growth behaviors of SA508 Gr.3 Cl.2 base and weld material in 290℃ water environment
Cho, Pyungyeon ; Kim, Jeong Hyeon ; Jang, Changheui ; Cho, Hyunchul ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 120~128
DOI : 10.14773/cst.2012.11.4.120
The fatigue crack growth behaviors of SA508 Gr.3 Cl.2 low alloy steel in high temperature water environment were investigated. Overall, weld metal showed similar crack growth rate as that of base metal. At 0.01 Hz, fatigue crack growth rate (FCGR) was higher than that in air while the difference was smaller at 0.1 Hz. Also, FCGR showed
dependency at 0.1 Hz only, indicating that the environmental effect was much greater at slower loading frequency of 0.01 Hz. FCGR of SA508 Gr.3 Cl.2 low alloy steel was compatible to or smaller than the ASME Sec. XI fatigue reference curves in high temperature water environment.
Reliability Analysis of UT Measurement for Evaluating Pipe Wall Thinning in Nuclear Power Plants
Yun, Hun ; Hwang, Kyeong-mo ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 129~134
DOI : 10.14773/cst.2012.11.4.129
UT(Ultrasonic Test), one of the non-destructive tests, is the most common thickness measurement method for evaluating the wear rate in NPPs(Nuclear Power Plants). UT is used widely because it is easy and safe for use. However some amount of error inevitably occurs in attempting to measure the thickness. The error, that could make the thickness data thicker or thinner, may affect estimation of wear rate in pipes. NPPs are composed of a lot of pipes and components. Some of them are tested to check the current status during RFO(Re-Fueling Outage). Reliability analysis of UT is essential for evaluating pipe wear rate and establishing the long-term management plan in NPPs. This paper reviewed the cause of error occurrence and presented the UT data reliability analysis method. Also, this paper shows the application result of reliability analysis to the UT data acquired in NPPs.
Study on an On-line Measurement System of Corrosion Rate by Linear Polarization Resistance
Moon, Jeon Soo ; Lee, Jae Kun ; Lee, Jae Bong ; Park, Pyl Yang ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 135~140
DOI : 10.14773/cst.2012.11.4.135
The linear polarization resistance method is one of the widely used techniques for the corrosion rate monitoring in the water circulating systems of plants. The measurement is simple and rapid, so that a continuous on-line monitoring is possible without any shutdown of plants. A 2-electrode polarization corrosion rate measurement system was installed in a laboratory using a data acquisition board and PC. The signal processing parameters were optimized for the accurate corrosion rate measurement, and the polarization resistance was compensated with the solution resistance measured by the high frequency sine wave signal of an output channel. The precision of corrosion rate data was greatly improved by removing the initial noise signals on measuring the polarization resistance.
Oxidation Behavior around the Stress Corrosion Crack Tips of Alloy 600 under PWR Primary Water Environment
Lim, Yun Soo ; Kim, Hong Pyo ; Hwang, Seong Sik ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 141~150
DOI : 10.14773/cst.2012.11.4.141
Stress corrosion cracks in Alloy 600 compact tension specimens tested at
in a simulated primary water environment of pressurized water reactor were analyzed by analytical transmission electron microscopy and secondary ion mass spectroscopy (SIMS). From a fine-probe chemical analysis, oxygen was found on the grain boundary just ahead of the crack tip, and chromium oxides were precipitated on the crack tip and the grain boundary attacked by the oxygen diffusion, leaving a Cr/Fe depletion (or Ni enrichment) zone. The oxide layer inside the crack was revealed to consist of a double (inner and outer) layer. Chromium oxides existed in the inner layer, with NiO and (Ni,Cr) spinels in the outer layer. From the nano-SIMS analysis, oxygen was detected at the locations of intergranular chromium carbides ahead of the crack tip, which means that oxygen diffused into the grain boundary and oxidized the surfaces of the chromium carbides. The intergranular chromium carbide blunted the crack tip, thereby suppressing the crack propagation.
Investigation on surface hardening and corrosion characteristic by water cavitation peening with time for Al 5052-O alloy
Kim, Seong-Jong ; Hyun, Koang-Yong ;
Corrosion Science and Technology, volume 11, issue 4, 2012, Pages 151~156
DOI : 10.14773/cst.2012.11.4.151
The cavity formed by the ultrasonic generation in the fluid with the application of water cavitation peening collides into the metal surface. At this time, the surface modification effect such as the work hardening presents by the compressive residual stress formed due to the localized plastic deformation. In this investigation, the water cavitation peening technology in the distilled water with the lapse of time was applied to 5052-O aluminum alloy for aluminum ship of a high value. So, the optimum water cavitation peening time on the effect for surface hardening and anti-corrosion property was investigated. Consequently, the water cavitatin peening time on excellent hardness and corrosion resistance characteristic presented 3.5 min. and 5.0 min, respectively. The surface hardness in the optimum water cavitation peening time was improved approximately 45% compared to the non-WCPed condition. In addition, corrosion current density was decreased.