文献类型：期刊文献

中文题名：微液滴现象与大气腐蚀——Ⅰ·微液滴的形成与扩展

英文题名：MICRO-DROPLETS PHENOMENON AND ATMOSPHERIC CORROSION——Ⅰ.Formation and spreading of micro-droplets

作者：张际标[1];王燕华[2];姜应律[2];王佳[2]

机构：[1]广东海洋大学海洋资源与环境监测中心,湛江524088;[2]中国海洋大学,青岛266003

年份：2006

卷号：26

期号：4

起止页码：207

中文期刊名：中国腐蚀与防护学报

外文期刊名：Journal of Chinese Society For Corrosion and Protection

收录：CSTPCD、、北大核心2004、Scopus、CSCD2011_2012、北大核心、CSCD

基金：国家十五自然科学基金支持项目(50499336-2)

语种：中文

中文关键词：微液滴现象;形成与扩展;环境参数大气腐蚀

外文关键词：micro- droplets phenomenon, formation and spreading, environment parameters, atmospheric corrosion

中文摘要：采用改变相对湿度、无机盐粒/金属组合和环境气氛等参数的方法研究了微液滴形成、生长的特征及其与大气腐蚀过程的关系.结果表明,微液滴形成和生长与气氛中氧和相对湿度及盐粒/金属组合密切相关.在大气环境中,微液滴形成和生长需要两个前提条件:第一,环境相对湿度须高于盐粒水解液滴液面的饱和蒸气压;第二,水解液滴下的金属应能被液滴腐蚀.

外文摘要：The formation of the electrolyte droplet due to the deliquescence of soluble salt particles is one of the cause for the acceleration of atmospheric corrosion. A lot of micro - droplets, 1 μm- 10 jam in diameter, were observed around the edge of the main - droplet formed by the deliquescence of salt particles deposited on metal surface in atmosphere. In this paper, the characteristics of the formation and spreading of the microdroplets were investigated in detail in a humidity - controlled chamber. The results showed that oxygen, relative humidity and a combination of salt particles and metals played important role in the formation of micro - droplets. Two premises were necessary for the formation of micro - droplets in atmosphere. First, the relative humidity should exceed the saturated relative humidity of the main - droplet. Another was that the metal substrate could be eroded under the main - droplet.