大型体育球馆用铝网壳结构表面三价铬转化膜性能研究

赵晶晶, 胡爽飞, 于得水, 朱永强, 刘永豪, 李文旭

doi:10.16577/j.issn.1001-1560.2022.0046

材料保护 >

2022 , Vol. 55 >Issue 2: 105 - 108

DOI: https://doi.org/10.16577/j.issn.1001-1560.2022.0046

工艺探讨

大型体育球馆用铝网壳结构表面三价铬转化膜性能研究

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1. 中国石油大学(华东)体育教学部； 2. 中国石油大学(华东)新能源学院

赵晶晶(1990-)，硕士研究生，讲师，研究方向为体育器材及在线教学，电话，18762853357，E-mail: zhaojj@upc.edu.cn

收稿日期: 2021-08-24

修回日期: 2021-09-29

录用日期: 2021-10-20

网络出版日期: 2023-12-26

基金资助

中央高校基本科研业务费专项资金(18CX02128A)；中国石油大学(华东)大学生创新创业项目(K20190204，20190363)资助

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Performance Study on Trivalent Chromium Conversion Coatings on Surface of Aluminum-Based Reticulated Shell Structure for Large Sports Stadium

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a.Department Physical Education, b.College of New Energy, China University of Petroleum(East China), Tsingdao 266580, China

Received date: 2021-08-24

Revised date: 2021-09-29

Accepted date: 2021-10-20

Online published: 2023-12-26

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摘要

为探究大型体育馆网壳结构用AA 3003铝合金表面转化膜性能，利用高倍电子显微镜、能谱分析、经典电化学测试方法和高分辨拉曼光谱研究了三价铬转化膜微观组织结构、化学组分、成膜过程及电化学性能。结果表明：AA 3003铝合金表面三价铬转化膜表面致密，其主要成分Cr/Zr原子比约为0.34，化学组分是ZrO2(拉曼光谱特征谱峰为470 cm-1)和Cr2O3(拉曼光谱特征谱峰为537 cm-1)。成膜过程的开路电位最小值和最终值分别为-1.32和-1.15 V(vs SCE)。三价铬转化膜显著降低了合金在0.1 mol/L NaCl溶液的腐蚀电流密度，并在阴极抑制方面显著。

关键词： 铝网壳; 表面处理; 三价铬; 转化膜

本文引用格式

赵晶晶, 胡爽飞, 于得水, 朱永强, 刘永豪, 李文旭 . 大型体育球馆用铝网壳结构表面三价铬转化膜性能研究[J]. 材料保护, 2022 , 55(2) : 105 -108 . DOI: 10.16577/j.issn.1001-1560.2022.0046

Abstract

In order to explore the performance of conversion coatings on surface of AA 3003 aluminum-based reticulated shell structure in large sports stadium, the high-magnification electron microscopy, energy spectrum analysis, traditional electrochemistry measurements and high-resolution Raman spectroscopy were employed to study the microstructure, chemical components, formation process of film and electrochemical property of trivalent chromium conversion coatings.Results showed that the trivalent chromium conversion film on the surface of AA 3003 aluminum alloy was dense, and the atomic ratio of the main component Cr/Zr of coatings was about 0.34.In addition, ZrO2(470 cm-1)and Cr2O3(537 cm-1)were the main components.The minimum and final stable values of open circuit potentials during the formation of conversion coating were-1.32 and-1.15 V(vs SCE), respectively.Moreover, the trivalent chromium conversion coating evidently reduced the corrosion current density of alloys in 0.1 mol/L NaCl solution, especially in the cathodic inhibition aspect.

Key words： aluminum-based reticulated shell; surface treatment; trivalent chromium; conversion coatings

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