加速大气腐蚀试验的一个新方案

中国腐蚀与防护学报

1990, Vol. 10

Issue (3): 228-232

研究报告

本期目录 | 过刊浏览

加速大气腐蚀试验的一个新方案

徐乃欣;张承典;丁翠红

中国科学院;上海冶金研究所;中国科学院;上海冶金研究所;中国科学院;上海冶金研究所

A NEW APPROACH TO ACCELERATE ATMOSPHERIC CORROSION TEST

Xu Naixin Zhang Chengdian and Ding Cuihong (Shanghai Institute of Metallurgy;Academia Sinica)

全文: PDF(1246 KB)

摘要: 湿热条件下进行大气腐蚀加速试验时,在金属试片表面覆盖一层镜头纸,由于纸质疏松造成的毛细作用,会产生有相当厚度、分布基本均匀并且易于控制重现的水膜。本文提出的这一方法大大缩短了腐蚀试验过程。

Abstract：Atmospheric corrosion test in laboratory is usually performed in a humidity cabinet to shorten the test duration.The main purpose of the new approach is to further increase severity of corrosion environment by means of promotion of water condensation on specimen surface.It is based on the exposure of lens-paper-covered specimens in humidity cabinet.Lens paper consists of long fibre with loosely netted texture. The capillarity of lens paper facilitates more water condensation from humid environment.Moreover,in the presence of lens paper, condensed water will spread out immediately instead of forming into drops.Vertical suspension of the specimen makes it easy to drain excessive water.As a result,a rather thick,uniform and reproducible water layer could be maintained on specimen surface.In water vapor saturated environment at 50℃,the thickness of such a water layer is typically about 40um.Experiments indicate that by means of such a simple arrangement,corrosion of specimen is significantly enhanced. Weight loss of bare mild steel specimen covered with lens paper is of an order of magnitude greater than that without it.The additional advantage of this new approach is that the rust stained lens paper after exposure could be reserved as permanent record of corrosion characteristics.

收稿日期: 1990-06-25

基金资助:中国科学院腐蚀科学开放实验室课题

	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
	徐乃欣
	张承典
	丁翠红
44.8K

引用本文:

徐乃欣;张承典;丁翠红. 加速大气腐蚀试验的一个新方案[J]. 中国腐蚀与防护学报, 1990, 10(3): 228-232.
. A NEW APPROACH TO ACCELERATE ATMOSPHERIC CORROSION TEST. J Chin Soc Corr Pro, 1990, 10(3): 228-232.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1990/V10/I3/228

[1] 托马晓夫,H.Ц.,金属腐蚀及其保护的理论,华保定等译,中国工业出版社,北京,1964,P251-252
[2] GB2361-80,防锈油脂湿热试验方法
[3] ASTM D1748-83,Standard Test Method for Rust Protection by Metal Preservatives in the Humidity Cabinet.
[4] 周静妤编著,防锈技术,化学工业出版社,1988,P126
[5] JB 3206-83,防锈油脂加速凝露腐蚀试验方法

No related articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed