Molybdate Based Passivation of Zinc

IF 1.5 4区材料科学 Q4 ELECTROCHEMISTRY

Transactions of The Institute of Metal Finishing Pub Date : 1997-01-01 DOI:10.1080/00202967.1997.11871161

P. T. Tang, G. Bech-Nielsen, P. Møller

引用次数: 17

Abstract

SummaryIn order to reduce corrosion rates, zinc plated parts are usually chromated. Recently Chromates have caused increasingly environmental concern, for both allergic effects among workers touching chromated parts and toxic effects on fish, plants and bacteria.A molybdate based alternative has been developed to replace Chromates in several passivation applications. Depending on the environment in which the passivated parts are to be exposed, the protection that this alternative treatment provides range from less efficient to more efficient as compared to Chromate.These aspects as well as issues such as; cost, stability, layer composition and test results from several different corrosion tests are discussed.

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钼酸盐基锌钝化

为了降低腐蚀速率，镀锌件通常采用铬化处理。近年来，铬酸盐引起了越来越多的环境关注，因为工人接触铬酸盐部分会产生过敏反应，对鱼类、植物和细菌产生毒性。在几种钝化应用中，钼酸盐替代铬酸盐已被开发出来。根据钝化部件暴露的环境，与铬酸盐相比，这种替代处理提供的保护效率从低到高不等。这些方面以及诸如;讨论了成本、稳定性、层组成和几种不同腐蚀试验的试验结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Transactions of The Institute of Metal Finishing 工程技术-材料科学：膜

CiteScore

3.40

自引率

10.50%

发文量

审稿时长

3 months

期刊介绍： Transactions of the Institute of Metal Finishing provides international peer-reviewed coverage of all aspects of surface finishing and surface engineering, from fundamental research to in-service applications. The coverage is principally concerned with the application of surface engineering and coating technologies to enhance the properties of engineering components and assemblies. These techniques include electroplating and electroless plating and their pre- and post-treatments, thus embracing all cleaning pickling and chemical conversion processes, and also complementary processes such as anodising. Increasingly, other processes are becoming important particularly regarding surface profile, texture, opacity, contact integrity, etc.