锌铝铬转化膜微观结构与成膜机理研究

中国腐蚀与防护学报

2002, Vol. 22

Issue (5): 269-273

研究报告

本期目录 | 过刊浏览

锌铝铬转化膜微观结构与成膜机理研究

韩树民;郑炀曾;于升学

燕山大学

STUDY ON MICROSTRUCTURE AND THE MECHANISM OFZINC-ALUMINUM-CHROMIUM CONVERSION COATING

Shumin Han;Yangzeng Zheng;Shengxue Yu

燕山大学

全文: PDF(138 KB)

摘要: 通过XRD、SEM、EDS、EPMA和XPS等手段，研究了锌铝铬转化膜的元素组成、物相和微观结构，提出了锌铝铬转化膜的成膜机理.结果表明，在锌铝铬转化膜层中存在着大量的锌粉和铝粉颗粒，这些金属颗粒之间以及它们与基体之间是靠三价铬氧化物形成的非晶态物质nCr2O3·mCrO3所填充和粘结的.

关键词 ：锌铝铬膜, 转化膜, 微观结构

Abstract：The composition,phase and microstructure of zinc-al uminum-chromium conversion coating were studied by XRD,SEM,EDS,EPMA and XPS etc. The mechanism of coating formation was proposed.Results showed that the main ele ments in the coating are zinc,aluminum and chromium.Zinc and aluminum existed mo stly as zero-valent zinc and zero-valent aluminum,but chromium existed mostly as trivalent chromium oxide.There were lots of zinc and aluminum particles in the coating phase,when heating the coated substrate approximately to 300℃,t he hexavalent chromium was reduced to an insoluble amorphous oxide,nCrO3·mC r2O3,by the organic substance such as succinic acid,which acted as a binde r f or the particles of zinc and aluminum to form a film.At the same time,the chromi c acid in the treatment chemical reacted with the metal surface of the substrate forming a chemical bond providing strong adhesion.

Key words： zinc-aluminum-chromium coating conversion coating micr ostructure

收稿日期: 2001-03-19

ZTFLH:

TG174.4

通讯作者: 韩树民 E-mail: hanshm@ysu.edu.cn

Corresponding author: Shumin Han E-mail: hanshm@ysu.edu.cn

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	韩树民
	郑炀曾
	于升学
44.8K

引用本文:

韩树民; 郑炀曾; 于升学 . 锌铝铬转化膜微观结构与成膜机理研究[J]. 中国腐蚀与防护学报, 2002, 22(5): 269-273 .
Shumin Han, Yangzeng Zheng, Shengxue Yu. STUDY ON MICROSTRUCTURE AND THE MECHANISM OFZINC-ALUMINUM-CHROMIUM CONVERSION COATING. J Chin Soc Corr Pro, 2002, 22(5): 269-273 .

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2002/V22/I5/269

[1]MulkinF .Anewcoatingforcorrosionandprotectionofmetalswithzincpowderpassivatedbychromate[P].US :3673731,1972
[2]KrauseHeringer.Dacromet:anewcorrosionprotectiontechniqueforfas teners[J].ProductFinishing,1977,(5):29-32
[3]FourezM ,GhenoF ,WhitePE .Theapplicationofzinc-aluminumflakenon-electrolyticsurfacecoatings[J].Trans.IMF .,1993,71(1):21-25
[4]GhenoF .Cleanprocesses-alternativestoelectroplating[J].Trans.IMF .,1996,74(5):7-10
[5]MichelLonca.Dactotizing-aneffectiveprotectionagainstcorrosion[J].Finishing,1990,14(9):35-38
[6]FedrizziL ,DeflorianF ,RossiS .Corrosionprotectionofsinteredmetalpartsbycoatingdeposition[J].WerkstoffeundKorrosion,1994,45:222-231
[7]YuXW ,CaoCN .DevelopmentofresearchontheDacromettechnique[J].Corrosion&Protection,2001,22(1):1-4(于兴文,曹楚南.达克罗技术研究进展[J].腐蚀与防护,2001,22(1):1-4)

[1]	于宏飞, 邵博, 张悦, 杨延格. 2A12铝合金锆基转化膜的制备及性能研究[J]. 中国腐蚀与防护学报, 2021, 41(1): 101-109.
[2]	赖德林,孔纲,车淳山. 硅酸盐封闭对TiO₂转化膜耐蚀性的影响[J]. 中国腐蚀与防护学报, 2018, 38(6): 607-614.
[3]	郝永胜,Luqman Abdullahi SANI,宋立新,徐国宝,葛铁军,方庆红. 中性和酸性溶液中Q235碳钢表面沉积植酸转化膜的耐蚀行为研究[J]. 中国腐蚀与防护学报, 2016, 36(6): 549-558.
[4]	郝敬丽,高永晶,董泽华. 硅氧烷硫化物与铈盐复合膜对铝合金耐点蚀能力的影响[J]. 中国腐蚀与防护学报, 2015, 35(6): 525-534.
[5]	陈廷益, 路文, 李文芳, 付业琦. AA6063铝合金Zr黑灰色转化膜及其自修复性能[J]. 中国腐蚀与防护学报, 2015, 35(2): 177-182.
[6]	崔学军, 白成波, 朱一波, 闵虹云, 王荣, 林修洲. Mn(NO₃)₂/Na₂MoO₄对AZ31B镁合金表面磷化膜微观形貌及耐蚀性的影响[J]. 中国腐蚀与防护学报, 2014, 34(5): 477-482.
[7]	崔学军，刘春海，李明田，林修洲，刘元洪. 工艺参数对AZ31镁合金磷化膜耐蚀性能及表面形貌的影响[J]. 中国腐蚀与防护学报, 2012, 32(6): 507-512.
[8]	李文芳，张凯，杜军. 铝合金Ce-Mn转化膜溶液中HF₂^-离子作用机理研究[J]. 中国腐蚀与防护学报, 2012, 32(1): 39-43.
[9]	崔学军,周吉学,王修春. 镁合金AZ31表面无铬磷酸盐转化膜的制备、结构及性能[J]. 中国腐蚀与防护学报, 2012, 32(1): 13-17.
[10]	刘晓兰,陈杰,曹靖涛,崔中雨,张涛,邵亚薇,孟国哲,王福会. 载波钝化对AZ91D镁合金锡酸盐化学转化膜耐蚀性能的影响[J]. 中国腐蚀与防护学报, 2010, 30(5): 341-346.
[11]	顾宝珊;刘建华. 电化学阻抗谱研究pH值对铝合金表面铈盐转化膜形成过程的影响[J]. 中国腐蚀与防护学报, 2010, 30(2): 124-128.
[12]	赵明; 吴树森; 安萍; 罗吉荣 . AZ91D镁合金表面无铬转化膜的研究[J]. 中国腐蚀与防护学报, 2007, 27(1): 17-22 .
[13]	顾宝珊; 刘建华; 纪晓春 . 铈盐对铝合金的缓蚀机理研究[J]. 中国腐蚀与防护学报, 2006, 26(1): 53-58 .
[14]	刘建平; 旷亚非; 许岩 . 铝在磷酸和钨酸钠体系中的高压氧化行为[J]. 中国腐蚀与防护学报, 2001, 21(4): 234-239 .
[15]	李国强; 李荻; 李久青 . 铝合金阳极氧化膜上阴极电解沉积的稀土铈转化膜[J]. 中国腐蚀与防护学报, 2001, 21(3): 150-157 .

Viewed

Full text

Abstract

Cited

Shared

Discussed