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材料工程  2019, Vol. 47 Issue (11): 148-154    DOI: 10.11868/j.issn.1001-4381.2018.001128
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
钢表面梯度结构耐腐蚀铝涂层的制备及研究
王瑶, 赵雪妮, 党新安, 杨璞, 魏森森, 张伟刚, 刘庆瑶
陕西科技大学 机电工程学院, 西安 710021
Preparation and research of structure-gradient and corrosion-resistant aluminium coatings on steel surface
WANG Yao, ZHAO Xue-ni, DANG Xin-an, YANG Pu, WEI Sen-sen, ZHANG Wei-gang, LIU Qing-yao
College of Mechanical and Electrical Engineering, Shaanxi University of Science&Technology, Xi'an 710021, China
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摘要 为了控制和改善耐腐蚀铝涂层的组成和形貌,首先采用磁控溅射法在Q235钢表面制备铝涂层,然后通过热浸镀法在其表面制备具有一定厚度的耐腐蚀铝涂层。利用扫描电子显微镜及其附带的能谱仪对涂层结构、厚度以及组成进行表征,并通过划痕实验、全浸泡实验对涂层的结合强度、耐腐蚀性能进行研究。结果表明:磁控溅射复合热浸镀法制备的涂层较为致密。利用热浸镀法和磁控溅射复合热浸镀法制备的铝涂层结构均由外层Al层和内层Fe-Al合金层构成,Al层厚度分别为(45.75±6.41)μm和(44.84±3.17)μm,Fe-Al合金层的厚度分别为(150.37±4.95)μm和(138.08±6.05)μm。热浸镀铝涂层与磁控溅射复合热浸镀铝涂层的结合力分别为163.90N和160.25N。热浸镀铝Q235钢、磁控溅射复合热浸镀铝Q235钢的腐蚀失重率约为未涂覆试样的1/12~1/6,后者的腐蚀凹坑更加均匀。
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王瑶
赵雪妮
党新安
杨璞
魏森森
张伟刚
刘庆瑶
关键词 热浸镀磁控溅射梯度结构铝涂层结合强度耐腐蚀性能    
Abstract:In order to control the composition and microstructure of corrosion-resistant aluminum coatings, a layer of pre-coating was deposited on Q235 steel surface by magnetron sputtering, and then corrosion-resistant aluminum coating with a certain thickness was prepared by hot dipping. Microstructure, thickness and chemical composition of aluminum coating were characterized by SEM equipped with EDS. The bonding strength of aluminum coating to substrate was tested by scratch test, and corrosion resistance was evaluated by salt water corrosion test. The results show that the coating obtained by magnetron sputtering combining with hot dipping is relatively denser. The aluminum coating prepared by both hot dipping and magnetron sputtering combining with hot dipping consists of an outer Al layer and an inner Fe-Al alloy layer. The thicknesses of Al layers are (45.75±6.41) μm and (44.84±3.17) μm, respectively. The thicknesses of Fe-Al alloy layers are (150.37±4.95) μm and (138.08±6.05) μm, respectively. The bonding strength between aluminum coating and substrate prepared by hot dipping is approximately 163.90N, while that prepared by magnetron sputtering combining with hot dipping is 160.25N. The corrosion mass loss rates of hot dip aluminizing Q235 steel and magnetron sputtering combining with hot dip aluminizing Q235 steel are about 1/12-1/6 of that of uncoated sample, and the corrosion pits of the latter one are more uniform.
Key wordshot dipping    magnetron sputtering    gradient structure    aluminum coating    bonding stren-gth    corrosion resistance
收稿日期: 2018-09-25      出版日期: 2019-11-21
中图分类号:  TG174  
基金资助: 
通讯作者: 赵雪妮(1974-),女,教授,博士,主要从事多层金属复合板制备及变形,金属板材表面防腐涂层,生物复合材料及涂层的研究,联系地址:陕西省西安市未央大学园区陕西科技大学(710021),E-mail:zhaoxueni@sust.edu.cn     E-mail: zhaoxueni@sust.edu.cn
引用本文:   
王瑶, 赵雪妮, 党新安, 杨璞, 魏森森, 张伟刚, 刘庆瑶. 钢表面梯度结构耐腐蚀铝涂层的制备及研究[J]. 材料工程, 2019, 47(11): 148-154.
WANG Yao, ZHAO Xue-ni, DANG Xin-an, YANG Pu, WEI Sen-sen, ZHANG Wei-gang, LIU Qing-yao. Preparation and research of structure-gradient and corrosion-resistant aluminium coatings on steel surface. Journal of Materials Engineering, 2019, 47(11): 148-154.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.001128      或      http://jme.biam.ac.cn/CN/Y2019/V47/I11/148
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