A DFT study on corrosion mechanism of steel bar under water-oxygen interaction

2020 ◽  
Vol 171 ◽  
pp. 109265 ◽  
Author(s):  
Zheng Chen ◽  
Yumei Nong ◽  
Jianhua Chen ◽  
Ye Chen ◽  
Bo Yu
Keyword(s):  
Dft Study ◽  
Corrosion Mechanism ◽  
Water Oxygen ◽  
Steel Bar ◽  
Oxygen Interaction

Periodic DFT Study of the Pt(111):  A p(1×1) Atomic Oxygen Interaction with the Surface

1999 ◽  
Vol 103 (34) ◽  
pp. 7222-7232 ◽  
Author(s):  
Anton Kokalj ◽  
Antonija Lesar ◽  
Milan Hodošček ◽  
Mauro Causà
Keyword(s):  
Atomic Oxygen ◽  
Dft Study ◽  
Periodic Dft ◽  
Oxygen Interaction

Corrosion Characteristics and Corrosion Current Distribution of Steel Bar in Carbonated Concrete

2011 ◽  
Vol 239-242 ◽  
pp. 3371-3376 ◽  
Author(s):  
Yong Sheng Ji ◽  
Jian Li Shen ◽  
Lei Wang ◽  
Cong Yu Xu
Keyword(s):  
Current Distribution ◽  
Experimental Verification ◽  
Corrosion Current ◽  
General Assumption ◽  
Concrete Cover ◽  
Corrosion Mechanism ◽  
General Corrosion ◽  
Steel Bar ◽  
Corrosion Mechanisms ◽  
Macrocell Corrosion

The corrosion characteristics of steel bar in concrete are decided by the corrosion current distribution along the circumference of the steel bar. It is a general assumption that carbonation lead to a general corrosion on the rebar. However, the destruction of a large number of specimens indicated that before corrosion cracking, the carbonation-induced corrosion mainly distributes on the surface of the steel bar facing the concrete cover. This paper examined the corrosion mechanism from fundamental electrochemical principles and experimental verification. It was illustrated that the macrocell corrosion must co-exist with microcell corrosion, both macrocell and microcell corrosion mechanisms could play significant roles, and the total corrosion could be underestimated if each of two is overlooked.

Iron–oxygen interaction in silicon: A combined XBIC/XRF-EBIC-DLTS study of precipitation and complex building

2009 ◽  
Vol 404 (23-24) ◽  
pp. 4645-4648
Author(s):  
M. Trushin ◽  
O. Vyvenko ◽  
W. Seifert ◽  
G. Jia ◽  
M. Kittler
Keyword(s):  
Complex Building ◽  
Oxygen Interaction

DFT study of the effect of hidrocarbonated chains on the electronic properties of some oligothiophene derivatives

2009 ◽  
Author(s):  
Manuel Fernández-Gómez ◽  
Amparo Navarro ◽  
MªPaz Fernández-Liencres ◽  
Mónica Moral ◽  
José Manuel Granadino-Roldán ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Dft Study

Structural Materials. Steel Bar Corrosion of Concrete Structures Affected by Combined Deteriorating Causes.

1996 ◽  
Vol 45 (9) ◽  
pp. 1048-1054
Author(s):  
Yukio KITAGO ◽  
Shigehiro KOBAYASHI ◽  
Yasutaka KIKUCHI ◽  
Toyoaki MIYAGAWA ◽  
Manabu FUJII
Keyword(s):  
Concrete Structures ◽  
Structural Materials ◽  
Steel Bar
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