Atmospheric corrosion behavior of carbon steel and galvanized steel in Southwest China

2018 ◽  
Vol 60 (6) ◽  
pp. 619-626
Author(s):  
Xingwen Zheng ◽  
Min Gong
2009 ◽  
Vol 417-418 ◽  
pp. 417-420 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Kunihiro Sugitani ◽  
Yoshihiro Ito ◽  
In Tae Kim

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.


2002 ◽  
Vol 74 (12) ◽  
pp. 59-68 ◽  
Author(s):  
D. Fuente ◽  
M. Morcillo ◽  
J. Simancas ◽  
L. S. Hernández ◽  
J. L. Ruiz

2015 ◽  
Vol 658 ◽  
pp. 42-52
Author(s):  
Polporn Chatisathien ◽  
Nuttapon Suttitam

Accelerated atmospheric corrosion behavior of carbon steel pipes subjected to cyclic salt spray test was performed according to ISO 14993 – Corrosion of metals and alloys – Accelerated testing involving cyclic exposure to salt mist, “dry” and “wet” conditions [1]. In order to investigate the effect of degree of exposure to environment of inner surface of the pipe on corrosion behavior of inner surface of the specimens, degree of completeness of weldment, 0%, 50%, 80%, and 100%, of steel cover plate is varied. Exposure times in this study are 168, 336, and 504 hours which can be correlated to 10, 20, and 30 years exposed to C3 corrosivity category according to the definition of ISO 9223 – Corrosion of metals and alloys – Corrosivity of atmospheres – Classification, determination and estimation [2,3]. After testing, visual inspection on outer and inner surfaces of the specimens were performed. In addition, average corrosion rate of the specimens were performed according to ISO 8407 – Corrosion of metals and alloys – Removal of corrosion products from corrosion test specimens [4]. The results show that as-received steel pipe specimens exhibited great degree of corrosion attack on the inner surface of the specimens while slight amount of corrosion was observed from the welded pipe specimens.


2012 ◽  
Vol 42 ◽  
pp. 171-185 ◽  
Author(s):  
M.O.G. Portella ◽  
K.F. Portella ◽  
P.A.M. Pereira ◽  
P.C. Inone ◽  
K.J.C. Brambilla ◽  
...  

2005 ◽  
pp. 221-224
Author(s):  
Yuji Hosoya ◽  
Tadashi Shinohara ◽  
Shin-ichi Motoda ◽  
Wataru Oshikawa

2005 ◽  
Vol 475-479 ◽  
pp. 221-224
Author(s):  
Yuji Hosoya ◽  
Tadashi Shinohara ◽  
Shin-ichi Motoda ◽  
Wataru Oshikawa

Atmospheric corrosion for carbon steel was discussed with taking notice of the relation between the corrosion rate, CR, and the thickness of adsorbed water film, d, onto deposited sea salt. Amount of water adsorbed onto sea salt was measured under various conditions of amount of deposited sea salt, Ws, and relative humidity, RH. Derived concentration of the solution film was compared with that calculated thermodynamically. Corrosion amount of carbon steel specimens exposed for a month under various Ws and RH was measured and CR along with d were obtained for each condition. The relations of CR to d had the same tendency as is found on “moist corrosion” and “wet corrosion” in Tomashov’s model; However, it showed a maximum CR = 0.29mm/y at d = 56µm, thicker than that reported by Tomashov.


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