铝及铝合金表面铬酸盐转化膜的组成与结构研究  Ⅲ.防蚀性的研究

中国腐蚀与防护学报

1988, Vol. 8

Issue (1): 45-50

研究报告

本期目录 | 过刊浏览

铝及铝合金表面铬酸盐转化膜的组成与结构研究 Ⅲ.防蚀性的研究

倪红兵;郁祖湛

复旦大学;复旦大学

STUDIES ON THE COMPOSITION AND STRUCTURE OF THE CHROMATE CONVERSION COATINGS ON THE SURFACE OF ALUMINUM AND ITS ALLOY Ⅲ.THE ANTICORROSION BEHAVIOUR OF THE CONVERSION COATINGS

Ni Hongbing Yu Zuzhan (Department of Chemistry Fudan University Shanghai)

全文: PDF(1359 KB)

摘要: <正> 我们的工作表明,铝及铝合金表面铬酸盐转化膜为非晶结构,主要组成为γ-CrOOH·nH_2O,还含有少量氟化物。在含 K_3Fe(CN)_6处理液中所得的转化膜中还检出少量铁氰化物。本文讨论转化膜形成的影响因素及转化膜的防蚀性,并对基材表面预处理工艺作了改进。

Abstract：The results of salt spraying tests indicate that the corrosion resistance of chromate conversion coatings on aluminum and its alloy is dependent on the substrate composition and on the surface pretreatment condition.The coating on L_2-Y is better than that on Ly_(12)-C_2.When an acidic(HNO_3+CrO_3+HF) pretreatment is used in place of alkaline etching,the corrosion resistance of these coatings could be markedly improved.

收稿日期: 1988-02-25

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引用本文:

倪红兵;郁祖湛. 铝及铝合金表面铬酸盐转化膜的组成与结构研究 Ⅲ.防蚀性的研究[J]. 中国腐蚀与防护学报, 1988, 8(1): 45-50.
. STUDIES ON THE COMPOSITION AND STRUCTURE OF THE CHROMATE CONVERSION COATINGS ON THE SURFACE OF ALUMINUM AND ITS ALLOY Ⅲ.THE ANTICORROSION BEHAVIOUR OF THE CONVERSION COATINGS. J Chin Soc Corr Pro, 1988, 8(1): 45-50.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1988/V8/I1/45

[1] 倪红兵,张冠生,郁祖湛,赵国庆,董树忠,中国腐蚀与防护学报,7(1) ,50(1987)
[2] 倪红兵.严曼明,郁祖湛,中国腐蚀与防护学报,7(2) ,121(1987)
[3] Samuels,S.;Kevin,W.,Metal Finishing,6,49(1981)
[4] 上海新华无线电厂三车间,材料保护,(4) ,17(1975)

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