第36卷第8期 北京科技大学学报 Vol.36 No.8 2014年8月 Journal of University of Science and Technology Beijing Aug.2014 溶胶一凝胶技术提高不锈钢抗高温氧化及铝合金阳极 氧化膜的耐蚀性能 郭彦飞”，张鲲2)四，刘 莉”，胡琪”，赵君文”，韩请”，郑学斌》 1)西南交通大学材料科学与工程学院，成都6100312)南车戚墅堰机车有限公司，常州213011 3)中国科学院无机特种涂层重点实验室，上海200050 ☒通信作者，Email:zhangkun2000@163.com 摘要采用溶胶-凝胶法在不锈钢基体表面制备ZO,和A山，0，涂层，并对铝合金阳极氧化膜进行封孔处理.采用高温循环 氧化法研究Z02和A山，0，涂层抗高温氧化性能，通过电化学阻抗谱和剥蚀法分析溶胶一凝胶法封孔后铝合金氧化膜的耐腐蚀 性能.结果表明：ZO2和AL,0,涂层的抗高温氧化性能随涂层厚度增加而提高：铝合金阳极氧化膜的耐腐蚀性能也随封孔次 数的增加而提高，但当封孔处理超过8次后，阻抗值和腐蚀程度基本不随封孔次数发生变化：实施相同次数封孔处理后，A1,O, 溶胶的封孔效果略优于ZO,溶胶的封孔效果. 关键词溶胶一凝胶法：不锈钢：铝合金：表面涂层：抗氧化：耐腐蚀 分类号TG174.4 Improvement in the high-temperature oxidation resistance of stainless steel and the corrosion resistance of the anodic oxide films of aluminum alloys by sol-gel technology GUO Yan-fei,ZHANG Kun,LIU Li,HU Qi,ZHAO Jun-ten,HAN Jing",ZHENG Xue-bin 1)School of Materials Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China 2)CSR Qishuyan Co.Ltd.Changzhou 213011,China 3)Key Laboratory of Inorganic Coating Materials,Chinese Academy of Sciences,Shanghai 200050,China Corresponding author,E-mail:zhangkun_2000@163.com ABSTRACT A sol-gel method was applied to prepare ZrO:and Al2O,coatings on stainless steel (SS304)substrates and to seal the anodic oxidation films of an aluminum alloy.The high-temperature oxidation resistance of as-prepared ZrO and AlO coatings was investigated by cyclic high-temperature oxidation tests.The corrosion resistance of the sealed anodic films was investigated by electro- chemical impedance spectroscopy (EIS)and exfoliation corrosion method.The experimental results indicate that the high-temperature oxidation resistance of the Zr0 and Al2O coatings is improved with the increasing of coating thickness,and the corrosion resistance of the sealed anodic films is also improved with the increasing times of sealing processes.However,the impedance value and corrosion degree of the sealed anodic films change slightly after more than 8 times of sealing processes.The corrosion resistance of the anodic films sealed with Al2O sol performs a little better than those with ZrO sol with the same times of sealing processes. KEY WORDS sol-gel process:stainless steel:aluminum alloys:surface coating:oxidation resistance:corrosion resistance 铁和铝是地壳中含量最多的两种金属元素，其产量位居金属前两位.相应的钢铁和铝合金制品的 收稿日期：2014-06-21 基金项目：国家自然科学基金资助项目(51201144)：中国博士后科学基金资助项目(2013M542288):中央高校基本科研业务费科技创新项目 (SWTU11CX051,2682013CX003):中国科学院无机特种涂层重点实验室开放基金资助项目(KLICM-2012-08):四川省科技成果转化项目 (2012CC0012) DOI:10.13374/j.issn1001-053x.2014.08.012:http://journals.ustb.edu.cn第 36 卷 第 8 期 2014 年 8 月 北京科技大学学报 Journal of University of Science and Technology Beijing Vol． 36 No． 8 Aug． 2014 溶胶--凝胶技术提高不锈钢抗高温氧化及铝合金阳极 氧化膜的耐蚀性能 郭彦飞1) ，张 鲲1，2，3) ，刘 莉1) ，胡 琪1) ，赵君文1) ，韩 靖1) ，郑学斌3) 1) 西南交通大学材料科学与工程学院，成都 610031 2) 南车戚墅堰机车有限公司，常州 213011 3) 中国科学院无机特种涂层重点实验室，上海 200050  通信作者，E-mail: zhangkun_2000@ 163． com 摘 要 采用溶胶--凝胶法在不锈钢基体表面制备 ZrO2 和 Al2O3 涂层，并对铝合金阳极氧化膜进行封孔处理． 采用高温循环 氧化法研究 ZrO2 和 Al2O3 涂层抗高温氧化性能，通过电化学阻抗谱和剥蚀法分析溶胶--凝胶法封孔后铝合金氧化膜的耐腐蚀 性能． 结果表明: ZrO2 和 Al2O3 涂层的抗高温氧化性能随涂层厚度增加而提高; 铝合金阳极氧化膜的耐腐蚀性能也随封孔次 数的增加而提高，但当封孔处理超过 8 次后，阻抗值和腐蚀程度基本不随封孔次数发生变化; 实施相同次数封孔处理后，Al2O3 溶胶的封孔效果略优于 ZrO2 溶胶的封孔效果． 关键词 溶胶--凝胶法; 不锈钢; 铝合金; 表面涂层; 抗氧化; 耐腐蚀 分类号 TG 174. 4 收稿日期: 2014--06--21 基金项目: 国家自然科学基金资助项目( 51201144) ; 中国博士后科学基金资助项目( 2013M542288) ; 中央高校基本科研业务费科技创新项目 ( SWJTU11CX051，2682013CX003) ; 中国科学院无机特种涂层重点实验室开放基金资助项目( KLICM--2012--08) ; 四川省科技成果转化项目 ( 2012CC0012) DOI: 10． 13374 /j． issn1001--053x． 2014． 08． 012; http: / /journals． ustb． edu． cn Improvement in the high-temperature oxidation resistance of stainless steel and the corrosion resistance of the anodic oxide films of aluminum alloys by sol--gel technology GUO Yan-fei1) ，ZHANG Kun1，2，3)  ，LIU Li1) ，HU Qi1) ，ZHAO Jun-wen1) ，HAN Jing1) ，ZHENG Xue-bin3) 1) School of Materials Science and Engineering，Southwest Jiaotong University，Chengdu 610031，China 2) CSＲ Qishuyan Co． Ltd． ，Changzhou 213011，China 3) Key Laboratory of Inorganic Coating Materials，Chinese Academy of Sciences，Shanghai 200050，China  Corresponding author，E-mail: zhangkun_2000@ 163． com ABSTＲACT A sol--gel method was applied to prepare ZrO2 and Al2O3 coatings on stainless steel ( SS304) substrates and to seal the anodic oxidation films of an aluminum alloy． The high-temperature oxidation resistance of as-prepared ZrO2 and Al2O3 coatings was investigated by cyclic high-temperature oxidation tests． The corrosion resistance of the sealed anodic films was investigated by electro￾chemical impedance spectroscopy ( EIS) and exfoliation corrosion method． The experimental results indicate that the high-temperature oxidation resistance of the ZrO2 and Al2O3 coatings is improved with the increasing of coating thickness，and the corrosion resistance of the sealed anodic films is also improved with the increasing times of sealing processes． However，the impedance value and corrosion degree of the sealed anodic films change slightly after more than 8 times of sealing processes． The corrosion resistance of the anodic films sealed with Al2O3 sol performs a little better than those with ZrO2 sol with the same times of sealing processes． KEY WOＲDS sol--gel process; stainless steel; aluminum alloys; surface coating; oxidation resistance; corrosion resistance 铁和铝是地壳中含量最多的两种金属元素，其 产量位居金属前两位． 相应的钢铁和铝合金制品的