Corrosion behavior and flexural performance of reinforced SFRC beams under sustained loading and chloride attack

2021 ◽  
Vol 242 ◽  
pp. 112553
Author(s):  
Lijun Hou ◽  
Yuhao Peng ◽  
Ran Xu ◽  
Xiufang Zhang ◽  
Ting Huang ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Flexural Performance ◽  
Sustained Loading ◽  
Chloride Attack

Corrosion behavior of steel rebar embedded in hybrid CNTs-OH/polyvinyl alcohol modified concrete under accelerated chloride attack

2019 ◽  
Vol 100 ◽  
pp. 120-129 ◽  
Author(s):  
Zhongkun Wang ◽  
Jing Yu ◽  
Gengying Li ◽  
Min Zhang ◽  
Christopher K.Y. Leung
Keyword(s):  
Polyvinyl Alcohol ◽  
Corrosion Behavior ◽  
Steel Rebar ◽  
Chloride Attack

Corrosion behavior of steel bar embedded in high-ductility cementitious composites under the coupled action of dry–wet cycles and chloride attack

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Li-Ping Guo ◽  
Li-Juan Chai ◽  
Yan-Hui Xu ◽  
Cong Ding ◽  
Yuan-Zhang Cao
Keyword(s):  
Corrosion Resistance ◽  
Corrosion Rate ◽  
Corrosion Behavior ◽  
Steel Corrosion ◽  
High Ductility ◽  
Chloride Permeability ◽  
Content Type ◽  
Steel Bar ◽  
Chloride Attack ◽  
Structure Engineering

Purpose High-ductility cementitious composites (HDCC) have an excellent crack controlled capacity and corrosion resistance capacity, which has a promising application in structure engineering under harsh environment. The purpose of this study is to explore the corrosion mechanism of steel bar in HDCC. Design/methodology/approach Intact and the pre-cracked HDCC specimens under the coupled action of different dry–wet cycles and chloride attack were designed, and intact normal concrete (NC) was also considered for comparison. Corrosion behavior of a steel bar embedded in HDCC was analyzed by an electrochemical method, a chloride permeability test and X-ray computed tomography. Findings Steel corrosion probability is related to the chloride permeability of the HDCC cover, and the chloride permeability resistance of HDCC is better than that of NC. Besides, crack is the key factor affecting the corrosion of steel bars, and the HDCC with narrower cracks have a lower corrosion rate. Slight pitting occurs at the crack tips. In addition, the self-healing products and corrosion products fill up the cracks in HDCC, preventing the external aggressive ions from entering and thereby decreasing the steel corrosion rate. Originality/value HDCC has a superior corrosion resistance than that of NC, effects of variable crack width on corrosion behavior of steel bar in HDCC under the coupled actions of different dry–wet cycles and chloride attack are investigated, which can provide the guide for the design application of HDCC material in structure engineering exposed to marine environment.

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.

CORROSION BEHAVIOR OF AMORPHOUS IRON-BASE ALLOYS

1980 ◽  
Vol 41 (C8) ◽  
pp. C8-862-C8-866
Author(s):  
M. Naka ◽  
K. Hashimoto ◽  
K. Asami ◽  
T. Masumoto
Keyword(s):  
Corrosion Behavior ◽  
Amorphous Iron ◽  
Iron Base

Flexural Performance of CFRP-Bamboo Scrimber Composite Beams

2019 ◽  
Vol 7 (12) ◽  
pp. 1295-1307
Author(s):  
Xizhi Wu ◽  
Xueyou Huang ◽  
Xianjun Li ◽  
Yiqiang Wu
Keyword(s):  
Composite Beams ◽  
Flexural Performance ◽  
Bamboo Scrimber

A Study on Impact Properties and Corrosion Behavior of Ni Added EH36 TMCP Steel

2013 ◽  
Vol 51 (1) ◽  
pp. 033-039
Author(s):  
Hae Woo Lee ◽  
Jae Hyeok Jeon ◽  
Ja Young Hong
Keyword(s):  
Corrosion Behavior ◽  
Impact Properties
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