Improved corrosion resistance in simulated concrete pore solution of surface nanocrystallized rebar fabricated by wire-brushing

被引：0
|
作者：
机构：
[1] [1,2,Song, Dan
[2] Ma, Aibin
[3] Sun, Wei
[4] 1,Jiang, Jinghua
[5] Jiang, Jinyang
[6] Yang, Donghui
[7] Guo, Guanghui
来源：
Ma, Aibin | 2014年 / Elsevier Ltd卷 / 82期
基金：
中国博士后科学基金;
关键词：
Average grain size - B. EIS - C. Passivity - Continuous surface - Enhanced stability - Passive films - Simulated concrete pore solution - Steel reinforced concrete;
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摘要：
Continuous surface nanocrystallization (SNC) of rebar was achieved through wire-brushing process. A uniform NC layer with thickness of 25μm and average grain size of 50nm was formed on the rebar surface. Due to the enhanced passivation performance of the NC layer, corrosion resistance of the SNC rebar was significantly improved in Cl--containing saturated Ca(OH)2 solution. High-energetic crystal defects of the nano-grains leads to the faster passivation and enhanced stability of the passive film of the SNC rebar. © 2014 Elsevier Ltd.
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