TiCN nanoparticle-induced corrosion inhibition mechanisms of AZ91 alloy

被引：5
|
作者：
Li, Haonan [1 ,2 ]
Fan, Min [3 ]
Wang, Kui [1 ,2 ]
Xu, Gaopeng [1 ,2 ]
Jiang, Haiyan [1 ,2 ]
Wang, Qudong [1 ,2 ]
Wang, Yingxin [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy, Net Forming, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
[3] Shanghai Jiao Tong Univ, Ruijin Hosp, Sch Med, Dept Pharm, Shanghai 200003, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 198卷
基金：
中国国家自然科学基金;
关键词：
Nanoparticles distribution; Nanocomposites; Corrosion barrier; Galvanic corrosion; Volta potential difference; MAGNESIUM ALLOYS; ATMOSPHERIC CORROSION; BEHAVIOR; MICROSTRUCTURE; MATRIX; ND;
D O I：
10.1016/j.corsci.2022.110109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work investigates the influence of TiCN nanoparticles addition on corrosion behavior of AZ91 alloys solidified at various cooling rates in 0.1 M NaCl solution. Results show that AZ91-2 (vol%) TiCN nanocomposite produced at 5 K/s exhibit highest corrosion resistance while its corrosion performance is dramatically decreased and even worse than that of matrix alloy when cooled at 60 K/s. Unlike intragranular distribution of NPs revealed in AZ91 nanocomposite produced at 60 K/s, intergranular distributed NPs revealed in 5 K/s can act as corrosion barrier between beta-Mg17Al12 and alpha-Mg and significantly reduce their potential difference, thus effectively inhibiting the corrosion.
引用
收藏
页数：17
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