车用轻质材料铝合金/CFRP在3.5% NaCl溶液中的腐蚀行为
Corrosion Behavior of Auto-used Aluminum Alloys/CFRP in NaCl Solution
摘 要
采用浸泡失重法和极化曲线法研究了螺栓螺母紧固件连接的三种铝合金和碳纤维环氧树脂复合材料(CFRP)的腐蚀行为;利用光学显微镜和台阶仪分别表征了腐蚀形貌和蚀坑深度,研究了CFRP表面粗糙度对腐蚀行为的影响.结果表明,偶合样品中金属表面发生电偶腐蚀和缝隙腐蚀,铝合金的腐蚀程度与自身的耐蚀性成正比;随着复合材料表面粗糙度的增加,铝合金发生腐蚀的面积增大,腐蚀深度减小.
碳纤维环氧树脂
电偶腐蚀
化学浸泡
aluminum alloy
carbon fiber refinforced polymer(CFRP)
galvanic corrosion
chemical immersion
Abstract
The corrosion behavior of the couples of carbon fiber refinforced polymer (CFRP) and three kinds of aluminum alloys was investigated through tafel curves and weight loss method.The morphology was observed by optical microscopy (OM),and the corrosion depth was tested by step profiler.The effect of surface roughness of CFRP on corrosion behavior was studied.The results indicated that galvanic corrosion and crevice corrosion occured on the aluminum alloy′s surface between the coupled materials.A proportional relation was found between the degree of corrosion measured and the own corrosion resistance of the aluminum alloys.As the surface roughness of CFRPs increased,the corrosion depth of aluminum alloys reduced and the corrosion area increased.
中图分类号 TG172.5 TB333 DOI 10.11973/fsyfh-201506014
所属栏目 试验研究
基金项目
收稿日期 2015/3/30
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备注黄晓英(1969-),副教授,硕士,从事材料、焊接相关研究.
引用该论文: HUANG Xiao-ying,LIU Meng-en,WANG Huai-jian. Corrosion Behavior of Auto-used Aluminum Alloys/CFRP in NaCl Solution[J]. Corrosion & Protection, 2015, 36(6): 569
被引情况:
【1】左玉婷,杜凤贞,夏 雯,刘淑凤,刘安生,张智慧, "铝合金散热器腐蚀失效分析",腐蚀与防护 37, 1018-1022(2016)
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参考文献
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【7】吕建坤,姚建荣.碳纤维复合材料连接接头的防腐蚀[J].腐蚀与防护,1995,16(6):285-289.
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【9】MANDEL M,KRUGER L.Electrochemical corrosion studies and pitting corrosion sensitivity of a self-pierce rivet joint of carbon fiber reinforced polymer (CFRP)-laminate and EN AW-6060-T6[J].Mat-wiss U Werkstofftech,2012(4):302-309.
【10】张晋,张涛,邵亚薇,等.5083和6061铝合金缝隙腐蚀行为的研究[J].腐蚀科学与防护技术,2014,2:125-131.
【11】GB/T 16545-1996金属和合金的腐蚀腐蚀试样上腐蚀产物的清除[S].
【2】BENEDYK J C.Light metals in automotive applications[J].Light Mental Age-Chicago,2000,58(9/10):34-35.
【3】TAMAKI Y.Research into achieving a lightweight vehicle body utilizing structure optimizing analysis:Aim for a lightweight and high and rigid vehicle body[J].JSAE Review,1999,20(4):558-561.
【4】MERKLEIN M,GEIGER M.New materials and production technologies for innovative lightweight constructions[J].Journal of Materials Processing Technology,2002,125:532-536.
【5】苏培博,吴晓宏,姜兆华,等.碳纤维复合材料与LY12铝合金的电偶腐蚀[J].腐蚀与防护,2014,35(1):37-39,73.
【6】BELLUCCI F.Galvanic corrosion between nonmetallic composites and metals I:Effects of metal and of temperature[J].Corrosion,1991,47(10):808-819.
【7】吕建坤,姚建荣.碳纤维复合材料连接接头的防腐蚀[J].腐蚀与防护,1995,16(6):285-289.
【8】BELLUCCI F,MARTINO A D,LIBERTI C.Electrochemical behaviour of graphite-epoxy composite materials (GECM) in aqueous salt solutions[J].Journal of Applied Electrochemistry,1986,16(1):15-22.
【9】MANDEL M,KRUGER L.Electrochemical corrosion studies and pitting corrosion sensitivity of a self-pierce rivet joint of carbon fiber reinforced polymer (CFRP)-laminate and EN AW-6060-T6[J].Mat-wiss U Werkstofftech,2012(4):302-309.
【10】张晋,张涛,邵亚薇,等.5083和6061铝合金缝隙腐蚀行为的研究[J].腐蚀科学与防护技术,2014,2:125-131.
【11】GB/T 16545-1996金属和合金的腐蚀腐蚀试样上腐蚀产物的清除[S].
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