Corrosion behaviour of bioinspired laminated Al matrix composite hybrid reinforced with B4C and graphene nanoplatelets

被引：4
作者：
Wang, Xing [1 ,2 ]
Jiang, Xiaosong [1 ,2 ,5 ]
Sun, Hongliang [1 ,2 ]
Zhang, Yali [3 ]
Fang, Yongjian [3 ]
Shu, Rui [1 ,4 ]
机构：
[1] Minist Educ, Key Lab Adv Technol Mat, Chengdu, Peoples R China
[2] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu, Peoples R China
[3] Sungkyunkwan Univ, Sch Mech Engn, Suwon, South Korea
[4] Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys IEK 4, Julich, Germany
[5] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 610031, Sichuan, Peoples R China
来源：
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2023年 / 58卷 / 03期
基金：
中国博士后科学基金;
关键词：
Imitation nacre shell; B4C; Al composites; GNPs; electrochemical corrosion; corrosion resistance; MECHANICAL-PROPERTIES; PASSIVE FILM; CARBON; MICROSTRUCTURE; RESISTANCE; EVOLUTION; ALLOY; NACL;
D O I：
10.1080/1478422X.2023.2182457
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrochemical corrosion tests (2500 ppm H3BO3 and 3.5 wt-% NaCl + 2500 ppm H3BO3 solution), salt spray tests and associated microstructure analysis were conducted to investigate the corrosion behaviours of bioinspired Al-xB(4)C-1GNPs laminated composites. The low porosity, defects and tightly bonded interface contribute to the high corrosion resistance. The increase of B4C content increased the corrosion potential and decreased the corrosion current density. The Al-5B(4)C-1GNPs has the highest corrosion resistance in NaCl + H3BO3 solution, the corrosion rate is 0.00459 mm/a. The laminated composites have better corrosion resistance in X plane than that in Z plane. The GNPs can prevent the Al matrix underneath it from contacting with solution and O-2. The laminated structure and orientation of GNPs can effectively change the corrosion pathway and prevent the corrosion crack propagating longitudinally into the composite.
引用
收藏
页码：270 / 280
页数：11
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