Time-Dependent Corrosion Behavior of Steel Members in Boundary with Concrete

2016 ◽  
Vol 54 (9) ◽  
pp. 852-858
Author(s):  
S. Kainuma ◽  
N. Hosomi
Keyword(s):  
Corrosion Behavior ◽  
Time Dependent ◽  
Steel Members

scholarly journals FUNDAMENTAL STUDY ON EVALUATION FOR TIME-DEPENDENT CORROSION BEHAVIOR OF LONG STEEL MEMBERS IN MARINE ENVIRONMENT

2009 ◽  
Vol 65 (2) ◽  
pp. 440-453 ◽  
Author(s):  
Shigenobu KAINUMA ◽  
Naofumi HOSOMI ◽  
Atsushi GOTO ◽  
Yoshito ITOH
Keyword(s):  
Corrosion Behavior ◽  
Marine Environment ◽  
Time Dependent ◽  
Fundamental Study ◽  
Steel Members

scholarly journals TIME-DEPENDENT CORROSION BEHAVIOR OF STRUCTURAL STEEL MEMBERS IN BOUNDARY WITH CONCRETE

2005 ◽  
pp. 97-114 ◽  
Author(s):  
Shigenobu KAINUMA ◽  
Naofumi HOSOMI ◽  
In-Tae KIM ◽  
Yoshito ITOH
Keyword(s):  
Structural Steel ◽  
Corrosion Behavior ◽  
Time Dependent ◽  
Steel Members

Time-dependent corrosion behavior of electroless Ni–P coating in H2S/Cl− environment

2021 ◽  
Vol 46 (21) ◽  
pp. 11849-11864
Author(s):  
Longyi Li ◽  
Jun Wang ◽  
Jie Xiao ◽  
Jing Yan ◽  
Hongyuan Fan ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Time Dependent ◽  
Electroless Ni

Evaluation Method for Time-Dependent Corrosion Behavior of Carbon Steel Plate Using Atmospheric Corrosion Monitoring Sensor

2009 ◽  
Vol 417-418 ◽  
pp. 417-420 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Kunihiro Sugitani ◽  
Yoshihiro Ito ◽  
In Tae Kim
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Atmospheric Corrosion ◽  
Evaluation Method ◽  
Steel Plates ◽  
Time Dependent ◽  
Corrosion Monitoring ◽  
Corrosion Sensor ◽  
Atmospheric Exposure ◽  
Corrosive Environments

The purpose of this research is to propose a method for evaluating the time-dependent corrosion behavior of carbon steel plates using an atmospheric corrosion monitor (ACM) corrosion sensor consisting of a Fe/Ag-galvanic couple. Atmospheric exposure tests were carried out on steel　plates for periods of 6, 12, and 24-months on the island of Okinawa in Japan. The Specimens were mounted on racks at angles of 0, 45 and 90 to the horizontal to obtain corrosion data in various corrosive environments. In addition, the environments of the skyward- and groundward-facing surfaces of the specimens were monitored using ACM sensors. The sensor outputs were recorded during the exposure tests.

Multi-Physics Coupling Analysis on the Time-Dependent Localized Corrosion Behavior of Carbon Steel in CO2-H2O Environment

2019 ◽  
Vol 167 (1) ◽  
pp. 013505 ◽  
Author(s):  
Kai Wang ◽  
Chenpei Li ◽  
Yanhui Li ◽  
Jinling Lu ◽  
Yueshe Wang ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Behavior ◽  
Time Dependent ◽  
Localized Corrosion ◽  
Coupling Analysis

Investigation of time-dependent corrosion behavior of Sr-modified AlSi12 alloy

2020 ◽  
Vol 111 (4) ◽  
pp. 339-346
Author(s):  
İnal Kaan Duygun ◽  
Gökçe Hapçı Ağaoğlu ◽  
Gökhan Orhan
Keyword(s):  
Corrosion Behavior ◽  
Time Dependent

Investigation of time-dependent corrosion behavior of Sr-modified AlSi12 alloy

2020 ◽  
Vol 111 (4) ◽  
pp. 339-346
Author(s):  
Gökçe Hapçı Aǧaoǧlu ◽  
İnal Kaan Duygun ◽  
Gökhan Orhan
Keyword(s):  
Particle Size ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Corrosion Behavior ◽  
Immersion Time ◽  
Volume Fraction ◽  
Electrochemical Impedance ◽  
Eutectic Structure ◽  
Time Dependent ◽  
Corrosion Properties

Abstract The effect of Sr addition on the microstructure and time-dependent corrosion properties of the AlSi12 eutectic alloy was investigated. The modified alloy contained 90 ± 3 ppm Sr. The microstructural differences in the eutectic structure of AlSi12 alloys were assessed in terms of the Si particle size and a-Al volume fraction. The unmodified and Sr-modified alloys were immersed for 1, 24, 72 and 120 h in 3.5 wt.% NaCl. Electrochemical impedance spectroscopy and potentiodynamic polarization techniques were performed to analyze the corrosion characteristics of the alloys. Sr addition led to a decrease in the Si particle size, and the formation of long dendritic a-Al. It was found that the presence of Sr resulted in more stable corrosion behavior up to 24 h. The deterioration of the corrosion behavior of Sr-modified alloy was observed with the further increase of immersion time.

Influence of Size and Proximity of Paint Coating Defects on Corrosion Behavior of Carbon Steel Plates

2015 ◽  
Vol 665 ◽  
pp. 125-128 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Young Soo Jeong ◽  
Junji Kobayashi
Keyword(s):  
Corrosion Behavior ◽  
Salt Water ◽  
Steel Structures ◽  
Steel Plates ◽  
Coated Steel ◽  
Wetting And Drying ◽  
Single Defect ◽  
Steel Members ◽  
Water Wetting ◽  
Circular Defect

To ensure the safety of painted steel structures, it is important to evaluate the influence of the size and proximity of coating defects on corrosion behavior. In this research, accelerated exposure tests were carried out using combined corrosion cycles, which consisted of exposure to atomizing salt water, wetting, and drying with hot and warm wind. The test specimens were paint-coated steel plates with individual circular machined coating defects 1, 3, 10, and 15 mm in diameter. Multi-circular defects 1 mm in diameter were also created in the specimens. The test results indicate that the mean and maximum corrosion depths increased with increasing diameter of the single defect of the coated steel plate. When actual coated steel members are exposed to corrosive chloride environments such as those represented by the corrosion cycle testing conducted in this research, the corrosion depth for multi-circular defects 1 mm in diameter appears to be 1.5 to 2.5 times greater than that for a single-circular defect.

Sem Studies of Co-Cr-Mo Surgical Implant Alloy Corrosion Behavior

1982 ◽  
Vol 40 ◽  
pp. 520-521
Author(s):  
Ann Chidester Van Orden ◽  
John L. Chidester ◽  
Anna C. Fraker ◽  
Pei Sung
Keyword(s):  
Electron Microscopy ◽  
Corrosion Behavior ◽  
Anodic Polarization ◽  
Saline Solution ◽  
Saturated Calomel Electrode ◽  
Physiological Saline ◽  
X Ray ◽  
Physiological Saline Solution ◽  
Scanning Electron

The influence of small variations in the composition on the corrosion behavior of Co-Cr-Mo alloys has been studied using scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDX), and electrochemical measurements. SEM and EDX data were correlated with data from in vitro corrosion measurements involving repassivation and also potentiostatic anodic polarization measurements. Specimens studied included the four alloys shown in Table 1. Corrosion tests were conducted in Hanks' physiological saline solution which has a pH of 7.4 and was held at a temperature of 37°C. Specimens were mechanically polished to a surface finish with 0.05 µm A1203, then exposed to the solution and anodically polarized at a rate of 0.006 v/min. All voltages were measured vs. the saturated calomel electrode (s.c.e.).. Specimens had breakdown potentials near 0.47V vs. s.c.e.

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