B4C和石墨烯纳米片增强复合材料的腐蚀行为

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Engineering, Science and Technology Pub Date : 2023-02-28 DOI:10.1080/1478422X.2023.2182457

Xingye Wang, Xiao-song Jiang, Hongliang Sun, Yali Zhang, Y. Fang, R. Shu

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引用次数: 0

摘要

通过电化学腐蚀试验(2500 ppm H3BO3和3.5 wt-% NaCl + 2500 ppm H3BO3溶液)、盐雾试验和相关的微观结构分析，研究了仿生Al-xB4C-1GNPs层合复合材料的腐蚀行为。低孔隙率、低缺陷和紧密结合的界面使其具有较高的耐腐蚀性。B4C含量的增加增加了腐蚀电位，降低了腐蚀电流密度。Al-5B4C-1GNPs在NaCl + H3BO3溶液中的耐蚀性最高，腐蚀速率为0.00459 mm/a。复合材料在X平面上的耐腐蚀性能优于Z平面。GNPs可以防止其下方的Al基体与溶液和O2接触。GNPs的层状结构和取向可以有效地改变腐蚀路径，防止腐蚀裂纹纵向扩展到复合材料中。

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

ABSTRACT 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-xB4C-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-5B4C-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 O2. The laminated structure and orientation of GNPs can effectively change the corrosion pathway and prevent the corrosion crack propagating longitudinally into the composite.

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来源期刊

Corrosion Engineering, Science and Technology 工程技术-材料科学：综合

CiteScore

3.20

自引率

5.60%

发文量

审稿时长

3.4 months

期刊介绍： Corrosion Engineering, Science and Technology provides broad international coverage of research and practice in corrosion processes and corrosion control. Peer-reviewed contributions address all aspects of corrosion engineering and corrosion science; there is strong emphasis on effective design and materials selection to combat corrosion and the journal carries failure case studies to further knowledge in these areas.